Numbers of Protective Service Occupations in National
    Occupation group
    
        
        
        
        
            Protective Service Occupations
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 3,006,100 | 
        
            
                | 2005 | 3,056,660 | 
        
            
                | 2006 | 3,024,850 | 
        
            
                | 2007 | 3,087,650 | 
        
            
                | 2008 | 3,128,980 | 
        
            
                | 2009 | 3,172,420 | 
        
            
                | 2010 | 3,187,840 | 
        
            
                | 2011 | 3,202,510 | 
        
            
                | 2012 | 3,207,800 | 
        
            
                | 2013 | 3,257,700 | 
        
            
                | 2014 | 3,297,180 | 
        
            
                | 2015 | 3,351,640 | 
        
            
                | 2016 | 3,386,350 | 
        
            
                | 2017 | 3,408,680 | 
        
            
                | 2018 | 3,437,410 | 
        
            
                | 2019 | 3,498,790 | 
        
    
     
    
        Individual occupations
        
        
        
        
        
        
            
        
        
        
            First-Line Supervisors of Correctional Officers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 35,880 | 
        
            
                | 2005 | 37,530 | 
        
            
                | 2006 | 37,400 | 
        
            
                | 2007 | 41,000 | 
        
            
                | 2008 | 40,840 | 
        
            
                | 2009 | 45,540 | 
        
            
                | 2010 | 39,920 | 
        
            
                | 2011 | 40,980 | 
        
            
                | 2012 | 44,830 | 
        
            
                | 2013 | 44,980 | 
        
            
                | 2014 | 45,150 | 
        
            
                | 2015 | 42,520 | 
        
            
                | 2016 | 43,230 | 
        
            
                | 2017 | 42,280 | 
        
            
                | 2018 | 43,760 | 
        
            
                | 2019 | 46,430 | 
        
    
         
        
        
            
        
        
        
            First-Line Supervisors of Police and Detectives
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 96,080 | 
        
            
                | 2005 | 91,320 | 
        
            
                | 2006 | 89,170 | 
        
            
                | 2007 | 91,510 | 
        
            
                | 2008 | 92,840 | 
        
            
                | 2009 | 99,900 | 
        
            
                | 2010 | 102,200 | 
        
            
                | 2011 | 102,040 | 
        
            
                | 2012 | 99,860 | 
        
            
                | 2013 | 101,320 | 
        
            
                | 2014 | 101,420 | 
        
            
                | 2015 | 100,370 | 
        
            
                | 2016 | 100,200 | 
        
            
                | 2017 | 104,860 | 
        
            
                | 2018 | 116,660 | 
        
            
                | 2019 | 121,340 | 
        
    
         
        
        
        
        
            
        
        
        
            First-Line Supervisors of Firefighting and Prevention Workers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 54,170 | 
        
            
                | 2005 | 53,490 | 
        
            
                | 2006 | 50,810 | 
        
            
                | 2007 | 52,160 | 
        
            
                | 2008 | 53,300 | 
        
            
                | 2009 | 57,750 | 
        
            
                | 2010 | 58,800 | 
        
            
                | 2011 | 58,210 | 
        
            
                | 2012 | 60,600 | 
        
            
                | 2013 | 59,700 | 
        
            
                | 2014 | 59,870 | 
        
            
                | 2015 | 58,110 | 
        
            
                | 2016 | 57,170 | 
        
            
                | 2017 | 58,690 | 
        
            
                | 2018 | 65,920 | 
        
            
                | 2019 | 69,590 | 
        
    
         
        
        
        
        
        
        
            
        
        
        
            First-Line Supervisors of Protective Service Workers, All Other
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 47,280 | 
        
            
                | 2005 | 49,330 | 
        
            
                | 2006 | 45,170 | 
        
            
                | 2007 | 45,750 | 
        
            
                | 2008 | 49,310 | 
        
            
                | 2009 | 49,360 | 
        
            
                | 2010 | 55,190 | 
        
            
                | 2011 | 55,910 | 
        
            
                | 2012 | 61,640 | 
        
            
                | 2013 | 64,510 | 
        
            
                | 2014 | 67,310 | 
        
            
                | 2015 | 69,660 | 
        
            
                | 2016 | 72,880 | 
        
            
                | 2017 | 74,430 | 
        
            
                | 2018 | 78,610 | 
        
    
         
        
        
        
        
            
        
        
        
            Firefighters
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 297,700 | 
        
            
                | 2013 | 302,870 | 
        
            
                | 2014 | 308,790 | 
        
            
                | 2015 | 318,790 | 
        
            
                | 2016 | 315,910 | 
        
            
                | 2017 | 319,860 | 
        
            
                | 2018 | 321,570 | 
        
            
                | 2019 | 324,620 | 
        
    
         
        
        
            
        
        
        
            Firefighters
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 273,630 | 
        
            
                | 2005 | 282,180 | 
        
            
                | 2006 | 283,630 | 
        
            
                | 2007 | 289,710 | 
        
            
                | 2008 | 298,900 | 
        
            
                | 2009 | 305,500 | 
        
            
                | 2010 | 302,400 | 
        
            
                | 2011 | 304,080 | 
        
            
                | 2012 | 297,700 | 
        
            
                | 2013 | 302,870 | 
        
            
                | 2014 | 308,790 | 
        
            
                | 2015 | 318,790 | 
        
            
                | 2016 | 315,910 | 
        
            
                | 2017 | 319,860 | 
        
            
                | 2018 | 321,570 | 
        
            
                | 2019 | 324,620 | 
        
    
         
        
        
            
        
        
        
            Fire Inspectors
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 13,660 | 
        
            
                | 2013 | 13,250 | 
        
            
                | 2014 | 13,000 | 
        
            
                | 2015 | 13,940 | 
        
            
                | 2016 | 13,560 | 
        
            
                | 2017 | 13,900 | 
        
            
                | 2018 | 14,660 | 
        
            
                | 2019 | 15,870 | 
        
    
         
        
        
            
        
        
        
            Fire Inspectors and Investigators
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 12,500 | 
        
            
                | 2005 | 12,820 | 
        
            
                | 2006 | 13,360 | 
        
            
                | 2007 | 12,980 | 
        
            
                | 2008 | 12,920 | 
        
            
                | 2009 | 12,180 | 
        
            
                | 2010 | 13,050 | 
        
            
                | 2011 | 12,560 | 
        
            
                | 2012 | 11,860 | 
        
            
                | 2013 | 11,520 | 
        
            
                | 2014 | 11,370 | 
        
            
                | 2015 | 12,290 | 
        
            
                | 2016 | 11,910 | 
        
            
                | 2017 | 11,940 | 
        
            
                | 2018 | 12,530 | 
        
            
                | 2019 | 13,710 | 
        
    
         
        
        
            
        
        
        
            Forest Fire Inspectors and Prevention Specialists
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 1,580 | 
        
            
                | 2005 | 1,720 | 
        
            
                | 2006 | 1,710 | 
        
            
                | 2007 | 1,600 | 
        
            
                | 2008 | 1,580 | 
        
            
                | 2009 | 1,540 | 
        
            
                | 2010 | 1,530 | 
        
            
                | 2011 | 1,530 | 
        
            
                | 2012 | 1,800 | 
        
            
                | 2013 | 1,730 | 
        
            
                | 2014 | 1,630 | 
        
            
                | 2015 | 1,650 | 
        
            
                | 2016 | 1,650 | 
        
            
                | 2017 | 1,960 | 
        
            
                | 2018 | 2,130 | 
        
            
                | 2019 | 2,160 | 
        
    
         
        
        
            
        
        
        
            Law Enforcement Workers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 1,212,010 | 
        
            
                | 2013 | 1,213,870 | 
        
            
                | 2014 | 1,216,140 | 
        
            
                | 2015 | 1,223,900 | 
        
            
                | 2016 | 1,232,490 | 
        
            
                | 2017 | 1,235,290 | 
        
            
                | 2018 | 1,217,260 | 
        
            
                | 2019 | 1,232,740 | 
        
    
         
        
        
            
        
        
        
            Bailiffs, Correctional Officers, and Jailers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 451,110 | 
        
            
                | 2013 | 449,040 | 
        
            
                | 2014 | 450,730 | 
        
            
                | 2015 | 445,520 | 
        
            
                | 2016 | 449,480 | 
        
            
                | 2017 | 447,350 | 
        
            
                | 2018 | 433,900 | 
        
            
                | 2019 | 442,700 | 
        
    
         
        
        
            
        
        
        
            Bailiffs
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 17,270 | 
        
            
                | 2005 | 17,160 | 
        
            
                | 2006 | 17,890 | 
        
            
                | 2007 | 18,830 | 
        
            
                | 2008 | 19,290 | 
        
            
                | 2009 | 17,140 | 
        
            
                | 2010 | 17,310 | 
        
            
                | 2011 | 16,730 | 
        
            
                | 2012 | 16,240 | 
        
            
                | 2013 | 16,360 | 
        
            
                | 2014 | 16,310 | 
        
            
                | 2015 | 17,730 | 
        
            
                | 2016 | 17,880 | 
        
            
                | 2017 | 18,480 | 
        
            
                | 2018 | 18,900 | 
        
            
                | 2019 | 19,650 | 
        
    
         
        
        
            
        
        
        
            Correctional Officers and Jailers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 409,580 | 
        
            
                | 2005 | 411,080 | 
        
            
                | 2006 | 417,810 | 
        
            
                | 2007 | 431,980 | 
        
            
                | 2008 | 428,040 | 
        
            
                | 2009 | 455,350 | 
        
            
                | 2010 | 457,550 | 
        
            
                | 2011 | 448,740 | 
        
            
                | 2012 | 434,870 | 
        
            
                | 2013 | 432,680 | 
        
            
                | 2014 | 434,420 | 
        
            
                | 2015 | 427,790 | 
        
            
                | 2016 | 431,600 | 
        
            
                | 2017 | 428,870 | 
        
            
                | 2018 | 415,000 | 
        
            
                | 2019 | 423,050 | 
        
    
         
        
        
        
        
            
        
        
        
            Detectives and Criminal Investigators
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 86,880 | 
        
            
                | 2005 | 85,270 | 
        
            
                | 2006 | 100,110 | 
        
            
                | 2007 | 103,320 | 
        
            
                | 2008 | 104,480 | 
        
            
                | 2009 | 110,380 | 
        
            
                | 2010 | 110,640 | 
        
            
                | 2011 | 111,930 | 
        
            
                | 2012 | 109,230 | 
        
            
                | 2013 | 109,960 | 
        
            
                | 2014 | 108,720 | 
        
            
                | 2015 | 106,580 | 
        
            
                | 2016 | 104,980 | 
        
            
                | 2017 | 105,350 | 
        
            
                | 2018 | 103,450 | 
        
            
                | 2019 | 105,620 | 
        
    
         
        
        
            
        
        
        
            Fish and Game Wardens
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 6,320 | 
        
            
                | 2013 | 6,640 | 
        
            
                | 2014 | 5,820 | 
        
            
                | 2015 | 5,630 | 
        
            
                | 2016 | 6,610 | 
        
            
                | 2017 | 6,020 | 
        
            
                | 2018 | 6,040 | 
        
            
                | 2019 | 6,800 | 
        
    
         
        
        
            
        
        
        
            Fish and Game Wardens
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 7,050 | 
        
            
                | 2005 | 6,300 | 
        
            
                | 2006 | 7,520 | 
        
            
                | 2007 | 7,500 | 
        
            
                | 2008 | 7,720 | 
        
            
                | 2009 | 7,530 | 
        
            
                | 2010 | 7,240 | 
        
            
                | 2011 | 7,180 | 
        
            
                | 2012 | 6,320 | 
        
            
                | 2013 | 6,640 | 
        
            
                | 2014 | 5,820 | 
        
            
                | 2015 | 5,630 | 
        
            
                | 2016 | 6,610 | 
        
            
                | 2017 | 6,020 | 
        
            
                | 2018 | 6,040 | 
        
            
                | 2019 | 6,800 | 
        
    
         
        
        
        
        
            
        
        
        
            Parking Enforcement Workers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 9,990 | 
        
            
                | 2005 | 10,140 | 
        
            
                | 2006 | 10,090 | 
        
            
                | 2007 | 9,910 | 
        
            
                | 2008 | 9,530 | 
        
            
                | 2009 | 9,670 | 
        
            
                | 2010 | 9,430 | 
        
            
                | 2011 | 9,310 | 
        
            
                | 2012 | 9,210 | 
        
            
                | 2013 | 8,790 | 
        
            
                | 2014 | 8,680 | 
        
            
                | 2015 | 8,710 | 
        
            
                | 2016 | 8,920 | 
        
            
                | 2017 | 8,660 | 
        
            
                | 2018 | 8,070 | 
        
            
                | 2019 | 7,650 | 
        
    
         
        
        
            
        
        
        
            Police Officers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 636,140 | 
        
            
                | 2013 | 639,440 | 
        
            
                | 2014 | 642,190 | 
        
            
                | 2015 | 657,460 | 
        
            
                | 2016 | 662,500 | 
        
            
                | 2017 | 667,910 | 
        
            
                | 2018 | 665,800 | 
        
            
                | 2019 | 669,970 | 
        
    
         
        
        
            
        
        
        
            Police and Sheriff’s Patrol Officers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 616,340 | 
        
            
                | 2005 | 624,130 | 
        
            
                | 2006 | 624,380 | 
        
            
                | 2007 | 625,880 | 
        
            
                | 2008 | 633,710 | 
        
            
                | 2009 | 641,590 | 
        
            
                | 2010 | 644,300 | 
        
            
                | 2011 | 636,410 | 
        
            
                | 2012 | 632,000 | 
        
            
                | 2013 | 635,380 | 
        
            
                | 2014 | 638,810 | 
        
            
                | 2015 | 653,740 | 
        
            
                | 2016 | 657,690 | 
        
            
                | 2017 | 662,390 | 
        
            
                | 2018 | 661,330 | 
        
            
                | 2019 | 665,280 | 
        
    
         
        
        
            
        
        
        
            Transit and Railroad Police
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 4,610 | 
        
            
                | 2005 | 5,090 | 
        
            
                | 2006 | 5,320 | 
        
            
                | 2007 | 5,530 | 
        
            
                | 2008 | 3,830 | 
        
            
                | 2009 | 3,930 | 
        
            
                | 2010 | 3,540 | 
        
            
                | 2011 | 3,890 | 
        
            
                | 2012 | 4,140 | 
        
            
                | 2013 | 4,060 | 
        
            
                | 2014 | 3,380 | 
        
            
                | 2015 | 3,720 | 
        
            
                | 2016 | 4,810 | 
        
            
                | 2017 | 5,520 | 
        
            
                | 2018 | 4,470 | 
        
            
                | 2019 | 4,690 | 
        
    
         
        
        
            
        
        
        
            Other Protective Service Workers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 1,417,500 | 
        
            
                | 2013 | 1,457,200 | 
        
            
                | 2014 | 1,485,500 | 
        
            
                | 2015 | 1,524,350 | 
        
            
                | 2016 | 1,550,910 | 
        
            
                | 2017 | 1,559,370 | 
        
            
                | 2018 | 1,578,970 | 
        
            
                | 2019 | 1,605,610 | 
        
    
         
        
        
            
        
        
        
            Animal Control Workers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 13,890 | 
        
            
                | 2013 | 13,590 | 
        
            
                | 2014 | 13,450 | 
        
            
                | 2015 | 13,180 | 
        
            
                | 2016 | 12,970 | 
        
            
                | 2017 | 12,700 | 
        
            
                | 2018 | 12,080 | 
        
            
                | 2019 | 11,980 | 
        
    
         
        
        
            
        
        
        
            Animal Control Workers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 13,780 | 
        
            
                | 2005 | 13,940 | 
        
            
                | 2006 | 14,600 | 
        
            
                | 2007 | 14,890 | 
        
            
                | 2008 | 15,480 | 
        
            
                | 2009 | 15,320 | 
        
            
                | 2010 | 15,040 | 
        
            
                | 2011 | 14,960 | 
        
            
                | 2012 | 13,890 | 
        
            
                | 2013 | 13,590 | 
        
            
                | 2014 | 13,450 | 
        
            
                | 2015 | 13,180 | 
        
            
                | 2016 | 12,970 | 
        
            
                | 2017 | 12,700 | 
        
            
                | 2018 | 12,080 | 
        
            
                | 2019 | 11,980 | 
        
    
         
        
        
        
        
            
        
        
        
            Private Detectives and Investigators
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 31,220 | 
        
            
                | 2005 | 33,720 | 
        
            
                | 2006 | 35,980 | 
        
            
                | 2007 | 37,410 | 
        
            
                | 2008 | 35,820 | 
        
            
                | 2009 | 31,250 | 
        
            
                | 2010 | 28,210 | 
        
            
                | 2011 | 26,080 | 
        
            
                | 2012 | 23,390 | 
        
            
                | 2013 | 25,820 | 
        
            
                | 2014 | 26,880 | 
        
            
                | 2015 | 30,460 | 
        
            
                | 2016 | 28,490 | 
        
            
                | 2017 | 30,980 | 
        
            
                | 2018 | 30,990 | 
        
            
                | 2019 | 35,000 | 
        
    
         
        
        
            
        
        
        
            Security Guards and Gambling Surveillance Officers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2012 | 1,055,570 | 
        
            
                | 2013 | 1,076,990 | 
        
            
                | 2014 | 1,087,550 | 
        
            
                | 2015 | 1,108,310 | 
        
            
                | 2016 | 1,113,580 | 
        
            
                | 2017 | 1,115,730 | 
        
            
                | 2018 | 1,124,610 | 
        
            
                | 2019 | 1,136,650 | 
        
    
         
        
        
            
        
        
        
            Gambling Surveillance Officers and Gambling Investigators
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 8,560 | 
        
            
                | 2005 | 8,730 | 
        
            
                | 2006 | 8,470 | 
        
            
                | 2007 | 9,030 | 
        
            
                | 2008 | 9,100 | 
        
            
                | 2009 | 7,670 | 
        
            
                | 2010 | 6,620 | 
        
            
                | 2011 | 7,580 | 
        
            
                | 2012 | 9,150 | 
        
            
                | 2013 | 10,260 | 
        
            
                | 2014 | 10,030 | 
        
            
                | 2015 | 10,650 | 
        
            
                | 2016 | 10,460 | 
        
            
                | 2017 | 10,290 | 
        
            
                | 2018 | 10,230 | 
        
            
                | 2019 | 10,280 | 
        
    
         
        
        
            
        
        
        
            Security Guards
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 978,570 | 
        
            
                | 2005 | 994,220 | 
        
            
                | 2006 | 1,004,130 | 
        
            
                | 2007 | 1,032,260 | 
        
            
                | 2008 | 1,046,760 | 
        
            
                | 2009 | 1,028,830 | 
        
            
                | 2010 | 1,006,880 | 
        
            
                | 2011 | 1,032,940 | 
        
            
                | 2012 | 1,046,420 | 
        
            
                | 2013 | 1,066,730 | 
        
            
                | 2014 | 1,077,520 | 
        
            
                | 2015 | 1,097,660 | 
        
            
                | 2016 | 1,103,120 | 
        
            
                | 2017 | 1,105,440 | 
        
            
                | 2018 | 1,114,380 | 
        
            
                | 2019 | 1,126,370 | 
        
    
         
        
        
        
        
            
        
        
        
            Crossing Guards and Flaggers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 70,180 | 
        
            
                | 2005 | 69,390 | 
        
            
                | 2006 | 67,750 | 
        
            
                | 2007 | 67,570 | 
        
            
                | 2008 | 68,530 | 
        
            
                | 2009 | 68,470 | 
        
            
                | 2010 | 68,740 | 
        
            
                | 2011 | 68,520 | 
        
            
                | 2012 | 70,390 | 
        
            
                | 2013 | 68,050 | 
        
            
                | 2014 | 66,310 | 
        
            
                | 2015 | 68,640 | 
        
            
                | 2016 | 72,900 | 
        
            
                | 2017 | 76,440 | 
        
            
                | 2018 | 79,880 | 
        
            
                | 2019 | 84,920 | 
        
    
         
        
        
            
        
        
        
            Lifeguards, Ski Patrol, and Other Recreational Protective Service Workers
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 108,210 | 
        
            
                | 2005 | 107,620 | 
        
            
                | 2006 | 108,870 | 
        
            
                | 2007 | 107,420 | 
        
            
                | 2008 | 111,560 | 
        
            
                | 2009 | 115,640 | 
        
            
                | 2010 | 117,540 | 
        
            
                | 2011 | 123,140 | 
        
            
                | 2012 | 125,770 | 
        
            
                | 2013 | 130,700 | 
        
            
                | 2014 | 135,070 | 
        
            
                | 2015 | 141,670 | 
        
            
                | 2016 | 145,100 | 
        
            
                | 2017 | 145,660 | 
        
            
                | 2018 | 144,370 | 
        
            
                | 2019 | 143,940 | 
        
    
         
        
        
            
        
        
        
            Transportation Security Screeners
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2010 | 42,430 | 
        
            
                | 2011 | 45,320 | 
        
            
                | 2012 | 47,200 | 
        
            
                | 2013 | 45,790 | 
        
            
                | 2014 | 43,220 | 
        
            
                | 2015 | 41,820 | 
        
            
                | 2016 | 42,750 | 
        
            
                | 2017 | 42,470 | 
        
            
                | 2018 | 45,250 | 
        
            
                | 2019 | 46,730 | 
        
    
         
        
        
            
        
        
        
            Protective Service Workers, All Other
                
    
    
        
        
        
    
    
        
    
    
        
            | Year | Number | 
        
            
                | 2004 | 122,740 | 
        
            
                | 2005 | 141,480 | 
        
            
                | 2006 | 80,680 | 
        
            
                | 2007 | 81,410 | 
        
            
                | 2008 | 85,440 | 
        
            
                | 2009 | 87,880 | 
        
            
                | 2010 | 79,280 | 
        
            
                | 2011 | 74,470 | 
        
            
                | 2012 | 81,290 | 
        
            
                | 2013 | 96,260 | 
        
            
                | 2014 | 113,020 | 
        
            
                | 2015 | 120,270 | 
        
            
                | 2016 | 135,120 | 
        
            
                | 2017 | 135,390 | 
        
            
                | 2018 | 141,790 |