Year	Number
1960	1433218
1961	1451831
1962	1473112
1963	1494109
1964	1510450
1965	1522235
1966	1533437
1967	1546765
1968	1558984
1969	1562001
1970	1561007
1971	1569363
1972	1583126
1973	1594487
1974	1603743
1975	1610374
1976	1614232
1977	1615965
1978	1618582
1979	1622836
1980	1628169
1981	1636164
1982	1645602
1983	1654245
1984	1662620
1985	1666995
1986	1666718
1987	1665618
1988	1663134
1989	1662399
1990	1665268
1991	1670754
1992	1677079
1993	1681845
1994	1684982
1995	1687261
1996	1690452
1997	1695450
1998	1702493
1999	1709286
2000	1713727
2001	1717360
2002	1720376
2003	1722957
2004	1725504
2005	1730650
2006	1734586
2007	1740245
2008	1748975
2009	1754322
2010	1755116
2011	1749724
2012	1741875
2013	1733168
2014	1724427
2015	1715839
2016	1707950
2017	1699735
2018	1691241
2019	1684584
2020	1679585
2021	1677686
2022	1678325
2023	1684140