Year	Number
1970	113758448
1971	116235392
1972	120779768
1973	127742096
1974	130932424
1975	135742560
1976	139241264
1977	146322448
1978	148668304
1979	153456000
1980	160457648
1981	167116160
1982	173777280
1983	180630736
1984	186046352
1985	188308960
1986	192946288
1987	195543648
1988	203287088
1989	211615584
1990	215517376
1991	222264752
1992	228432032
1993	236538480
1994	242932784
1995	244681920
1996	247514736
1997	251407776
1998	253345584
1999	257195984
2000	263155040
2001	264687808
2002	268791648
2003	282137344
2004	288233856
2005	295528800
2006	299352416
2007	304815840
2008	306285088
2009	307641920
2010	311198720
2011	314179296
2012	320218304
2013	326142816
2014	324744960
2015	327898240
2016	338941024
2017	339808128
2018	323595808
2019	326001248
2020	331302176
2021	334192000
2022	345290880