Year	Number
1960	223950
1961	229742
1962	235691
1963	241706
1964	247621
1965	253604
1966	259902
1967	266455
1968	273273
1969	280380
1970	287759
1971	295416
1972	303395
1973	311745
1974	320495
1975	329673
1976	339306
1977	349127
1978	359191
1979	369812
1980	381032
1981	392881
1982	405321
1983	418263
1984	431668
1985	445525
1986	459813
1987	474600
1988	489936
1989	502545
1990	515716
1991	532774
1992	558609
1993	587138
1994	609887
1995	626824
1996	637006
1997	651021
1998	670069
1999	690899
2000	713590
2001	731205
2002	744342
2003	758668
2004	773828
2005	789885
2006	807022
2007	825723
2008	845229
2009	863762
2010	880584
2011	895725
2012	909417
2013	930448
2014	959971
2015	990674
2016	1022697
2017	1056257
2018	1091510
2019	1128570
2020	1167541
2021	1208364
2022	1251909
2023	1298406