Year	Number
1960	2060355
1961	2052215
1962	2038268
1963	2020703
1964	2002929
1965	1987921
1966	1975839
1967	1965796
1968	1964334
1969	1972584
1970	1979004
1971	1980481
1972	1979966
1973	1983503
1974	1996610
1975	2006994
1976	2013115
1977	2021016
1978	2018501
1979	2012675
1980	2010696
1981	2005884
1982	1999607
1983	1985574
1984	1963558
1985	1938522
1986	1917344
1987	1903334
1988	1886815
1989	1837789
1990	1773291
1991	1721094
1992	1663776
1993	1610768
1994	1563864
1995	1514172
1996	1465646
1997	1415685
1998	1364000
1999	1317411
2000	1276729
2001	1218101
2002	1158875
2003	1118692
2004	1082269
2005	1052294
2006	1031275
2007	1019280
2008	1013221
2009	1013046
2010	1016599
2011	1019030
2012	1022358
2013	1025523
2014	1021726
2015	1012870
2016	1004658
2017	997805
2018	990275
2019	980935
2020	972082
2021	962521
2022	904849
2023	898326