Year	Number
1960	1845463
1961	1895611
1962	1947468
1963	2000845
1964	2055561
1965	2111323
1966	2168304
1967	2226660
1968	2285947
1969	2345927
1970	2406665
1971	2467570
1972	2529314
1973	2593117
1974	2659250
1975	2728602
1976	2801113
1977	2876800
1978	2957054
1979	3042646
1980	3132506
1981	3225425
1982	3320620
1983	3417624
1984	3516921
1985	3619287
1986	3725059
1987	3834599
1988	3947885
1989	4065191
1990	4187921
1991	4315529
1992	4447864
1993	4586569
1994	4732770
1995	4888843
1996	5052195
1997	5219493
1998	5394990
1999	5578322
2000	5768657
2001	5967421
2002	6174051
2003	6389847
2004	6616601
2005	6854818
2006	7103832
2007	7364222
2008	7636788
2009	7921750
2010	8219898
2011	8530903
2012	8859465
2013	9201607
2014	9553826
2015	9925014
2016	10315083
2017	10716126
2018	11128131
2019	11553632
2020	11991269
2021	12443587
2022	12914594
2023	13405554