Year	Number
1960	1573762
1961	1607708
1962	1643804
1963	1682605
1964	1724119
1965	1770611
1966	1830051
1967	1912799
1968	2002428
1969	2096906
1970	2194712
1971	2295903
1972	2401089
1973	2511039
1974	2626377
1975	2745387
1976	2857310
1977	2971992
1978	3088345
1979	3206299
1980	3326508
1981	3450526
1982	3579185
1983	3712705
1984	3858754
1985	4025053
1986	4195965
1987	4369529
1988	4543857
1989	4716962
1990	4890656
1991	5066444
1992	5242969
1993	5418801
1994	5584448
1995	5713456
1996	5834681
1997	5950970
1998	6063024
1999	6170691
2000	6275528
2001	6378688
2002	6480910
2003	6583664
2004	6684800
2005	6777044
2006	6869247
2007	6962852
2008	7058984
2009	7158322
2010	7262322
2011	7384954
2012	7511197
2013	7627127
2014	7745627
2015	7865762
2016	7986686
2017	8107611
2018	8227235
2019	8344632
2020	8460667
2021	8570328
2022	8675724
2023	8788529