Year	Number
1960	334849
1961	345007
1962	355307
1963	365986
1964	377375
1965	389596
1966	402760
1967	416919
1968	431713
1969	446507
1970	461038
1971	475500
1972	489945
1973	503755
1974	517034
1975	530624
1976	544286
1977	557711
1978	571380
1979	585966
1980	601625
1981	618539
1982	636488
1983	655451
1984	674638
1985	693109
1986	710875
1987	727776
1988	744065
1989	760748
1990	778225
1991	796064
1992	814348
1993	832960
1994	851894
1995	871103
1996	890776
1997	910974
1998	931100
1999	949889
2000	966701
2001	981864
2002	995699
2003	1008253
2004	1019658
2005	1030242
2006	1040516
2007	1051375
2008	1061439
2009	1073311
2010	1089401
2011	1107985
2012	1128257
2013	1149502
2014	1179500
2015	1219186
2016	1261751
2017	1307284
2018	1356564
2019	1409591
2020	1463109
2021	1511180
2022	1564294
2023	1627268