Year	Number
1970	17717500
1971	18809300
1972	21078700
1973	22821000
1974	26532900
1975	30649500
1976	33989400
1977	37141200
1978	41000200
1979	47754900
1980	51822900
1981	52315700
1982	53473200
1983	53517600
1984	54487400
1985	56286100
1986	60548200
1987	61892400
1988	61535800
1989	66610700
1990	65165400
1991	64136600
1992	64903900
1993	68207800
1994	73894400
1995	72889000
1996	77252200
1997	85239100
1998	90079300
1999	93629700
2000	96507566
2001	101576743
2002	97945064
2003	94799825
2004	100859199
2005	107537262
2006	110439889
2007	120106257
2008	133677728
2009	140453020
2010	178418790.8156146
2011	198178802.34158066
2012	217297987.70764747
2013	234290843.07170227
2014	248819232.96744397
2015	264217989
2016	266690030
2017	275641368.35
2018	293327220.7859884
2019	305061356.5510806
2020	121084047.42199999
2021	187704362.69599998