Year	Number
1960	3923841
1961	4031944
1962	4132275
1963	4229848
1964	4335984
1965	4453836
1966	4572093
1967	4692422
1968	4829273
1969	4971979
1970	5101350
1971	5237202
1972	5392948
1973	5547402
1974	5710147
1975	5879818
1976	6057769
1977	6241286
1978	6416216
1979	6578364
1980	6704367
1981	6791466
1982	6870953
1983	6968894
1984	7087247
1985	7205873
1986	7340714
1987	7501063
1988	7674707
1989	7874023
1990	8099515
1991	8330139
1992	8594373
1993	8871678
1994	9151421
1995	9404006
1996	9607296
1997	9789904
1998	9955558
1999	10114082
2000	10309554
2001	10551451
2002	10848808
2003	11162319
2004	11450328
2005	11721875
2006	11978921
2007	12207726
2008	12412040
2009	12636662
2010	12874477
2011	13152101
2012	13483139
2013	13824886
2014	14181942
2015	14575053
2016	14994823
2017	15434335
2018	15887916
2019	16358524
2020	16775294
2021	17091284
2022	17232248
2023	17746461