Year	Number
1960	937458
1961	943852
1962	950298
1963	956788
1964	963331
1965	967143
1966	968171
1967	969201
1968	970234
1969	971264
1970	967479
1971	958853
1972	951394
1973	963589
1974	975958
1975	978461
1976	970850
1977	963318
1978	955834
1979	948408
1980	940603
1981	932455
1982	924367
1983	922076
1984	925462
1985	929244
1986	933448
1987	937670
1988	941918
1989	946174
1990	951473
1991	957845
1992	964269
1993	970717
1994	980378
1995	987823
1996	991148
1997	994475
1998	997818
1999	1001173
2000	1004643
2001	1008217
2002	1011808
2003	1015413
2004	1019035
2005	1024731
2006	1032587
2007	1040502.9999999999
2008	1048491
2009	1056518
2010	1064617
2011	1072779
2012	1081015
2013	1089290
2014	1097641
2015	1106056
2016	1114536
2017	1123080
2018	1131690
2019	1140339
2020	1148972
2021	1157519
2022	1165898
2023	1174025