Year	Number
1960	44117889
1961	44556588
1962	44967955
1963	45403130
1964	45858081
1965	46238392
1966	46604193
1967	47056350
1968	47477668
1969	47838429
1970	48099156
1971	48344749
1972	48700652
1973	49073627
1974	49483085
1975	49938386
1976	50386213
1977	50798978
1978	51151074
1979	51455793
1980	51746620
1981	52031785
1982	52322786
1983	52597849
1984	52857040
1985	53095245
1986	53325242
1987	53547278
1988	53722777
1989	53759611
1990	53711158
1991	53553563
1992	53351244
1993	53289122
1994	53250876
1995	53142927
1996	52996151
1997	52867238
1998	52746647
1999	52627522
2000	52323168
2001	51943548
2002	51593196
2003	51427912
2004	51287572
2005	51151207
2006	51023769
2007	50833704
2008	50654999
2009	50567585
2010	50397708
2011	50292655
2012	50190366
2013	50093248
2014	50000020
2015	49902655
2016	49794663
2017	49690815
2018	49614561
2019	49567024
2020	49468508
2021	49088461
2022	48497338
2023	48560043