Year	Number
1960	803085
1961	808961
1962	819205
1963	831018
1964	844083
1965	856448
1966	866884
1967	874639
1968	881975
1969	890508
1970	899873
1971	909669
1972	918351
1973	926781
1974	935317
1975	943400
1976	950508
1977	956987
1978	962688
1979	967216
1980	972798
1981	980688
1982	989675
1983	997821
1984	1005999
1985	1015612
1986	1024623
1987	1032108
1988	1036795
1989	1038442
1990	1037406
1991	1031355
1992	1011356
1993	984161
1994	962564
1995	945133
1996	931727
1997	922626
1998	917466
1999	929158
2000	941321
2001	937945
2002	934061
2003	930328
2004	926719
2005	922372
2006	915462
2007	908765
2008	904893
2009	901239
2010	896373
2011	889309
2012	880189
2013	870697
2014	861707
2015	856276
2016	850822
2017	846482
2018	845484
2019	844746
2020	842292
2021	840607
2022	849966
2023	858377