Year	Number
1974	10458800
1975	11774800
1976	12545500
1977	13571100
1978	15667800
1979	17767700
1980	19463300
1981	22763000
1982	23994200
1983	24162000
1984	27209100
1985	30078100
1986	34762200
1987	40027200
1988	47778100
1989	44109000
1990	52224800
1991	57949100
1992	69094200
1993	77190600
1994	88857400
1995	104320600
1996	110862300
1997	107721300
1998	106380600
1999	105525000
2000	117475001
2001	131899488
2002	144954360
2003	145986148
2004	202945818
2005	220887277
2006	244449016
2007	277768225
2008	287719256
2009	326293542
2010	430814825.8326161
2011	482470567.06029934
2012	526045298.3735501
2013	579794849.8401834
2014	640165915.1412456
2015	708798867
2016	790494215
2017	881698293
2018	964324620.095903
2019	1003476407.1325972
2020	545598407.4980001
2021	516080253.789