Year	Number
1960	635719
1961	654012
1962	675177
1963	696708
1964	716094
1965	731991
1966	744734
1967	754268
1968	762704
1969	773269
1970	789744
1971	811914
1972	837678
1973	865123
1974	891747
1975	916027
1976	937981
1977	957927
1978	976805
1979	994172
1980	1010944
1981	1027910
1982	1044011
1983	1059136
1984	1073436
1985	1087892
1986	1103514
1987	1119358
1988	1134696
1989	1149318
1990	1163867
1991	1177180
1992	1189713
1993	1204234
1994	1220057
1995	1235157
1996	1251497
1997	1265251
1998	1274740
1999	1283491
2000	1288693
2001	1292170
2002	1294958
2003	1297596
2004	1300361
2005	1301837
2006	1299785
2007	1294801
2008	1288844
2009	1282133
2010	1275193
2011	1259599
2012	1242975
2013	1227706
2014	1207013
2015	1184823
2016	1160390
2017	1130429
2018	1082959
2019	1079516
2020	1104137
2021	1091268
2022	1070366
2023	1059580