Year	Number
1960	4469877
1961	4541061
1962	4627366
1963	4718648
1964	4813794
1965	4907577
1966	4997085
1967	5084325
1968	5173874
1969	5269968
1970	5375891
1971	5492091
1972	5611855
1973	5733746
1974	5854751
1975	5979304
1976	6112886
1977	6252533
1978	6392049
1979	6531244
1980	6671431
1981	6810325
1982	6947933
1983	7080824
1984	7211579
1985	7347446
1986	7482793
1987	7615728
1988	7750092
1989	7881839
1990	8016506
1991	8159545
1992	8245527
1993	8318889
1994	8409259
1995	8508919
1996	8650097
1997	8810692
1998	8982184
1999	9170547
2000	9353586
2001	9521962
2002	9690043
2003	9863871
2004	10059183
2005	10270511
2006	10488155
2007	10711113
2008	10933309
2009	11144959
2010	11318346
2011	11448008
2012	11591465
2013	11749660
2014	11912132
2015	12085654
2016	12260008
2017	12439870
2018	12625117
2019	12776361
2020	12881707
2021	12991390
2022	13141913
2023	13286037