Year	Number
1960	2052887
1961	2120945
1962	2194003
1963	2271717
1964	2354065
1965	2441017
1966	2532765
1967	2630561
1968	2735195
1969	2847012
1970	2967691
1971	3100232
1972	3247651
1973	3410118
1974	3585454
1975	3753646
1976	3910534
1977	4072394
1978	4241235
1979	4417425
1980	4601297
1981	4793086
1982	4993016
1983	5201815
1984	5419502
1985	5645732
1986	5879990
1987	6121999
1988	6371907
1989	6628660
1990	6890505
1991	7153327
1992	7410436
1993	7646481
1994	7862930
1995	8082656
1996	8309322
1997	8537038
1998	8766283
1999	8998032
2000	9230142
2001	9462097
2002	9695331
2003	9929220
2004	10172103
2005	10497404
2006	10901784
2007	11316699
2008	11737168
2009	12159682
2010	12546820
2011	12874436
2012	13177067
2013	13473465
2014	13761419
2015	13975740
2016	14124969
2017	14364501
2018	14682638
2019	14991273
2020	15110254
2021	15184150
2022	15429586
2023	15700888