Year	Number
1960	198594
1961	210680
1962	223519
1963	237265
1964	252464
1965	268591
1966	285773
1967	304053
1968	323530
1969	344197
1970	366215
1971	387470
1972	400761
1973	414470
1974	428668
1975	443352
1976	458560
1977	474246
1978	490491
1979	507293
1980	524694
1981	542642
1982	561230
1983	580455
1984	600367
1985	620903
1986	642172
1987	664170
1988	686953
1989	710451
1990	734788
1991	759958
1992	786027
1993	812914
1994	840760
1995	864993
1996	869323
1997	873664
1998	878032
1999	882422
2000	886840
2001	891268
2002	895725
2003	900203
2004	904710
2005	910222
2006	928401
2007	946942
2008	965880
2009	985143
2010	991925
2011	998755
2012	1005640
2013	1012554
2014	1019526
2015	1026545.0000000001
2016	1033622.0000000001
2017	1040748
2018	1047923
2019	1055472
2020	1063698
2021	1072852
2022	1083094
2023	1094510