Year	Number
1960	30455000
1961	30739250
1962	31023366
1963	31296651
1964	31609195
1965	31954292
1966	32283194
1967	32682947
1968	33113134
1969	33441054
1970	33814531
1971	34224490
1972	34604469
1973	34988947
1974	35373335
1975	35757900
1976	36137812
1977	36511638
1978	36864898
1979	37191330
1980	37491165
1981	37758631
1982	37986012
1983	38171525
1984	38330364
1985	38469512
1986	38584624
1987	38684815
1988	38766939
1989	38827764
1990	38867322
1991	38966376
1992	39157685
1993	39361262
1994	39549108
1995	39724050
1996	39889852
1997	40057389
1998	40223509
1999	40386875
2000	40567864
2001	40850412
2002	41431558
2003	42187645
2004	42921895
2005	43653155
2006	44397319
2007	45226803
2008	45954106
2009	46362946
2010	46576897
2011	46742697
2012	46773055
2013	46620045
2014	46480882
2015	46444832
2016	46484062
2017	46593236
2018	46797754
2019	47134837
2020	47365655
2021	47415794
2022	47778340
2023	48373336