Year	Number
1960	461374
1961	472920
1962	485755
1963	499953
1964	516372
1965	533563
1966	550071
1967	566949
1968	584290
1969	602275
1970	620662
1971	639123
1972	658161
1973	678236
1974	699310
1975	722779
1976	748384
1977	775499
1978	804383
1979	834099
1980	864332
1981	894068
1982	922712
1983	953796
1984	983832
1985	1009997
1986	1036211
1987	1061723
1988	1086030
1989	1109247
1990	973101
1991	850107
1992	894375
1993	923361
1994	914040
1995	915915
1996	938060
1997	1011352
1998	1117313
1999	1179788
2000	1225271
2001	1263121
2002	1298694
2003	1312271
2004	1332233
2005	1398749
2006	1485728
2007	1568273
2008	1636104
2009	1689218
2010	1739839
2011	1793509
2012	1846117
2013	1891306
2014	1931073
2015	1966344
2016	1999173
2017	2029964
2018	2058883
2019	2085421
2020	2109139
2021	2129950
2022	2148780
2023	2167714