Year	Number
1960	3835196
1961	3955530
1962	4079794
1963	4206691
1964	4334252
1965	4461131
1966	4585060
1967	4705207
1968	4824059
1969	4943494
1970	5065072
1971	5187194
1972	5310789
1973	5440270
1974	5575364
1975	5715521
1976	5860256
1977	6013614
1978	6175335
1979	6339986
1980	6509322
1981	6682667
1982	6859613
1983	7044106
1984	7239367
1985	7448452
1986	7671909
1987	7907269
1988	8151106
1989	8396840
1990	8642988
1991	8890521
1992	9142411
1993	9401203
1994	9667337
1995	9938199
1996	10211073
1997	10488071
1998	10765935
1999	11042420
2000	11313791
2001	11581251
2002	11850120
2003	12118281
2004	12385554
2005	12651740
2006	12916424
2007	13179771
2008	13437576
2009	13686532
2010	13925419
2011	14163015
2012	14405218
2013	14646296
2014	14885695
2015	15120922
2016	15354558
2017	15584594
2018	15801948
2019	16009996
2020	16213821
2021	16407343
2022	16596389
2023	16788267