Year	Number
1960	862196
1961	847721
1962	836128
1963	828130
1964	826692
1965	831473
1966	839402
1967	847158
1968	851310
1969	855179
1970	860816
1971	864619
1972	865725
1973	865853
1974	867381
1975	869668
1976	869578
1977	866485
1978	859427
1979	848068
1980	834916
1981	820499
1982	805219
1983	792141
1984	783315
1985	777664
1986	773034
1987	769888
1988	771010
1989	776500
1990	786422
1991	800239
1992	815086
1993	829983
1994	843432
1995	850943
1996	852196
1997	850528
1998	847500
1999	843472
2000	838461
2001	832890
2002	827477
2003	821590
2004	814345
2005	805366
2006	797224
2007	792476
2008	790833
2009	793521
2010	800986
2011	811714
2012	824924
2013	840258
2014	856590
2015	873521
2016	892608
2017	911528
2018	926492
2019	938016
2020	945254
2021	949534
2022	949785
2023	944113