Year	Number
1960	1284949
1961	1350747
1962	1419719
1963	1491664
1964	1563113
1965	1622969
1966	1684303
1967	1746816
1968	1810234
1969	1874378
1970	1939050
1971	2004473
1972	2070684
1973	2137989
1974	2206442
1975	2276190
1976	2347670
1977	2421551
1978	2498844
1979	2580838
1980	2668218
1981	2761086
1982	2859308
1983	2962273
1984	3069556
1985	3180971
1986	3296596
1987	3416470
1988	3540636
1989	3668666
1990	3800324
1991	3934691
1992	4071017
1993	4208693
1994	4348255
1995	4490594
1996	4635095
1997	4781726
1998	4933129
1999	5089420
2000	5253870
2001	5421506
2002	5588466
2003	5750534
2004	5911891
2005	6074432
2006	6238013
2007	6402661
2008	6568347
2009	6734651
2010	6902116
2011	7072123
2012	7243152
2013	7418337
2014	7597137
2015	7779195
2016	7964335
2017	8153103
2018	8345772
2019	8540945
2020	8738685
2021	8938987
2022	9141704
2023	9346539