Year	Number
1960	5055143
1961	5108832
1962	5108342
1963	5089731
1964	5063845
1965	5002839
1966	4909006
1967	4817182
1968	4721225
1969	4618098
1970	4484023
1971	4362070
1972	4287034
1973	4227449
1974	4194207
1975	4191101
1976	4216736
1977	4257004
1978	4290847
1979	4339302
1980	4413988
1981	4493325
1982	4580436
1983	4678121
1984	4773359
1985	4853128
1986	4909125
1987	4936283
1988	4925008
1989	4893718
1990	4856781
1991	4808449
1992	4750086
1993	4679153
1994	4595181
1995	4494358
1996	4383833
1997	4262886
1998	4122930
1999	3974927
2000	3786173
2001	3649435
2002	3528739
2003	3414790
2004	3309994
2005	3215192
2006	3129960
2007	3062897
2008	3020504
2009	2996331
2010	2971376
2011	2957625
2012	2943708
2013	2932095
2014	2924057
2015	2920087
2016	2922635
2017	2940453
2018	2964158
2019	2981166
2020	2987031
2021	2979746
2022	2862978
2023	2812734