Year	Number
1960	629417
1961	673613
1962	718084
1963	761549
1964	801109
1965	836263
1966	869448
1967	900702
1968	929732
1969	956752
1970	981962
1971	1005466
1972	1026984
1973	1046563
1974	1064621
1975	1081349
1976	1097231
1977	1112894
1978	1128831
1979	1145766
1980	1163892
1981	1184280
1982	1208257
1983	1235562
1984	1265999
1985	1300088
1986	1338506
1987	1380102
1988	1421315
1989	1462904
1990	1503944
1991	1541740
1992	1578501
1993	1614143
1994	1645610
1995	1671235
1996	1689706
1997	1701279
1998	1707602
1999	1707917
2000	1701307
2001	1687848
2002	1669320
2003	1649116
2004	1627935
2005	1608604
2006	1594300
2007	1583757
2008	1577795
2009	1579146
2010	1589597
2011	1609322
2012	1637503
2013	1672399
2014	1712027
2015	1754246
2016	1797603
2017	1841021
2018	1882226
2019	1919460
2020	1952180
2021	1979718
2022	2001238
2023	2015678