Year	Number
1960	3946859
1961	4051892
1962	4175588
1963	4301280
1964	4430175
1965	4560873
1966	4684594
1967	4805992
1968	4926021
1969	5048255
1970	5172871
1971	5300029
1972	5430539
1973	5568491
1974	5706247
1975	5861746
1976	6054112
1977	6232903
1978	6362890
1979	6497678
1980	6654545
1981	6821670
1982	6988778
1983	7160022
1984	7355652
1985	7573843
1986	7816610
1987	8085404
1988	8370181
1989	8669255
1990	9014055
1991	9349238
1992	9691678
1993	10028317
1994	10370037
1995	10723110
1996	11130338
1997	11596227
1998	12028647
1999	12420744
2000	12808608
2001	13191444
2002	13566662
2003	13927137
2004	14281487
2005	14625830
2006	14958002
2007	15296360
2008	15658116
2009	16064481
2010	16530985
2011	17083722
2012	17717194
2013	18419123
2014	19180575
2015	19993780
2016	20851051
2017	21770582
2018	22767557
2019	23819817
2020	24857005
2021	25839887
2022	26855933
2023	28026101