Year	Number
1960	504508
1961	516537
1962	529191
1963	542409
1964	556123
1965	570303
1966	584885
1967	599865
1968	615245
1969	631052
1970	647449
1971	664496
1972	682090
1973	700207
1974	718953
1975	738425
1976	758607
1977	779502
1978	800991
1979	823053
1980	845746
1981	869115
1982	893301
1983	918327
1984	943827
1985	969283
1986	994986
1987	1020845
1988	1046998
1989	1072855
1990	1097182
1991	1040354
1992	979663
1993	1009578
1994	1039886
1995	1096976
1996	1150146
1997	1163731
1998	1181255
1999	1203350
2000	1224856
2001	1259330
2002	1301839
2003	1354578
2004	1409206
2005	1443290
2006	1467258
2007	1490034
2008	1529533
2009	1568303
2010	1599986
2011	1629719
2012	1652054
2013	1673718
2014	1687076
2015	1695227
2016	1707716
2017	1723370
2018	1747412
2019	1773958
2020	1802355
2021	1834472
2022	1866154
2023	1898379