Year	Number
1960	4633265
1961	4617690
1962	4615737
1963	4620920
1964	4619535
1965	4615259
1966	4614238
1967	4615958
1968	4609383
1969	4598618
1970	4597890
1971	4611662
1972	4640698
1973	4676463
1974	4694173
1975	4692362
1976	4707837
1977	4741844
1978	4772679
1979	4802105
1980	4846328
1981	4914857
1982	4979548
1983	5033355
1984	5082055
1985	5109326
1986	5122590
1987	5127529
1988	5130120
1989	5148524
1990	5185162
1991	5232760
1992	5284193
1993	5319765
1994	5330400
1995	5330655
1996	5336622
1997	5347896
1998	5362014
1999	5383919
2000	5411062
2001	5448046
2002	5491630
2003	5532119
2004	5561678
2005	5577847
2006	5587256
2007	5598503
2008	5616074
2009	5629260
2010	5648587
2011	5675763
2012	5696737
2013	5719020
2014	5753902
2015	5812079
2016	5866325
2017	5893061
2018	5906977
2019	5918009
2020	5925020
2021	5926351
2022	5950883
2023	5974693