Year	Number
1960	1678102
1961	1649979
1962	1627268
1963	1611315
1964	1608086
1965	1617457
1966	1633191
1967	1648501
1968	1656888
1969	1664786
1970	1676152
1971	1684136
1972	1686718
1973	1687215
1974	1690603
1975	1695390
1976	1695471
1977	1689810
1978	1676567
1979	1654869
1980	1629498
1981	1601709
1982	1572157
1983	1546562
1984	1529015
1985	1517527
1986	1508142
1987	1501928
1988	1503849
1989	1514085
1990	1533008
1991	1559509
1992	1588098
1993	1617004
1994	1643163
1995	1657669
1996	1660029
1997	1656935
1998	1651380
1999	1644025
2000	1634817
2001	1624373
2002	1613994
2003	1602655
2004	1588522
2005	1570855
2006	1554969
2007	1545585
2008	1541691
2009	1545814
2010	1559429
2011	1579568
2012	1604597
2013	1634334
2014	1666815
2015	1700223
2016	1737202
2017	1773580
2018	1801984
2019	1823725
2020	1837227
2021	1845060
2022	1845679
2023	1835471