Year	Number
1960	2653356
1961	2691303
1962	2731194
1963	2771660
1964	2819922
1965	2870441
1966	2908852
1967	2942710
1968	2979390
1969	3016443
1970	3053860
1971	3103935
1972	3166403
1973	3237848
1974	3317934
1975	3399399
1976	3482407
1977	3567388
1978	3654580
1979	3743636
1980	3834894
1981	3928544
1982	4024574
1983	4110460
1984	4176752
1985	4243620
1986	4315482
1987	4350058
1988	4246868
1989	4117498
1990	4120099
1991	4182177
1992	4217786
1993	4234032
1994	4332914
1995	4460449
1996	4565474
1997	4688229
1998	4773335
1999	4892125
2000	5105313
2001	5330909
2002	5565443
2003	5811286
2004	6071525
2005	6348202
2006	6641454
2007	6951438
2008	7274854
2009	7595562
2010	7979424
2011	8396023
2012	8752093
2013	9060855
2014	9124698
2015	9083950
2016	8953364
2017	8596286
2018	8356285
2019	8368685
2020	8463875
2021	8543371
2022	8638206
2023	8738526