Year	Number
1960	560908
1961	592802
1962	626558
1963	662237
1964	700000
1965	732959
1966	767520
1967	803709
1968	841659
1969	881288
1970	922842
1971	1000273
1972	1107063
1973	1224912
1974	1355495
1975	1500000
1976	1523866
1977	1548045
1978	1572642
1979	1597630
1980	1623050
1981	1648802
1982	1675000
1983	1644483
1984	1614481
1985	1585107
1986	1556228
1987	1527875
1988	1500000
1989	1392477
1990	1292529
1991	1200045
1992	1216657
1993	1233452
1994	1250502
1995	1267788
1996	1285337
1997	1303080
1998	1360000
1999	1421889
2000	1486686
2001	1554245
2002	1677788
2003	1710339
2004	1743568
2005	1777348
2006	1818013
2007	1859625
2008	1902189
2009	1945728
2010	1990263
2011	2035818
2012	2082415
2013	2130079
2014	2178834
2015	2228705
2016	2279717
2017	2331897
2018	2385271
2019	2406875
2020	2424425
2021	2434609
2022	2433155
2023	2421354