Year	Number
1960	2342532
1961	2386173
1962	2432062
1963	2479397
1964	2528498
1965	2580291
1966	2633641
1967	2687269
1968	2741817
1969	2798102
1970	2857081
1971	2918709
1972	2981280
1973	3045381
1974	3113011
1975	3183474
1976	3254876
1977	3326942
1978	3399504
1979	3472678
1980	3546540
1981	3620061
1982	3693218
1983	3765719
1984	3837312
1985	3909086
1986	3981968
1987	4056392
1988	4130850
1989	4202770
1990	4272550
1991	4342051
1992	4412107
1993	4482523
1994	4553245
1995	4624376
1996	4696228
1997	4769691
1998	4845009
1999	4922211
2000	5001295
2001	5081892
2002	5164752
2003	5250037
2004	5337290
2005	5426650
2006	5517216
2007	5605818
2008	5690959
2009	5773242
2010	5851985
2011	5926626
2012	5996215
2013	6060039
2014	6121727
2015	6181456
2016	6252200
2017	6354421
2018	6475917
2019	6595279
2020	6680210
2021	6735238
2022	6753092
2023	6734115