Year	Number
1960	7476970
1961	7713348
1962	7930447
1963	8132388
1964	8305752
1965	8458677
1966	8601218
1967	8702061
1968	8783798
1969	8869705
1970	8882090
1971	8848527
1972	8798206
1973	8685875
1974	8509311
1975	8269965
1976	8007573
1977	7749291
1978	7494207
1979	7246254
1980	7024755
1981	6815221
1982	6601199
1983	6396040
1984	6212437
1985	6076812
1986	6001412
1987	5981957
1988	6030948
1989	6133398
1990	6251333
1991	6348115
1992	6419833
1993	6468542
1994	6477689
1995	6457705
1996	6426648
1997	6390209
1998	6346672
1999	6303688
2000	6259101
2001	6199323
2002	6118554
2003	6016791
2004	5904391
2005	5787928
2006	5679538
2007	5593545
2008	5519811
2009	5453128
2010	5402964
2011	5261664
2012	5222952
2013	5197514
2014	5198346
2015	5241816
2016	5310767
2017	5380805
2018	5449945
2019	5509694
2020	5559930
2021	5612351
2022	5689029
2023	5749443