Year	Number
1960	2656234
1961	2772677
1962	2895029
1963	3022385
1964	3153963
1965	3282735
1966	3415027
1967	3551335
1968	3690749
1969	3831426
1970	3978504
1971	4133823
1972	4290972
1973	4447749
1974	4602886
1975	4741013
1976	4877627
1977	5019081
1978	5167027
1979	5309728
1980	5448102
1981	5591406
1982	5734993
1983	5879814
1984	6025280
1985	6167842
1986	6312729
1987	6457896
1988	6578021
1989	6669994
1990	6723034
1991	6766199
1992	6821128
1993	6876034
1994	6907388
1995	6924262
1996	6939798
1997	6949361
1998	6956101
1999	6966778
2000	6983033
2001	6995457
2002	6998521
2003	6996348
2004	6994710
2005	6992229
2006	6993921
2007	7005597
2008	7024602
2009	7049739
2010	7081770
2011	7114020
2012	7150971
2013	7195632
2014	7246350
2015	7302153
2016	7354014
2017	7390686
2018	7418413
2019	7445754
2020	7455467
2021	7433696
2022	7412540
2023	7409732