Year	Number
1960	751885
1961	757203
1962	762895
1963	770488
1964	778900
1965	788135
1966	799143
1967	809633
1968	817928
1969	823465
1970	829725
1971	836830
1972	843808
1973	851023
1974	855869
1975	864584
1976	877715
1977	888703
1978	898777
1979	908795
1980	918146
1981	920833
1982	922663
1983	928303
1984	932844
1985	937262
1986	948881
1987	960226
1988	962649
1989	963011
1990	963666
1991	964549
1992	964003
1993	962651
1994	962483
1995	963649
1996	963971
1997	963563
1998	962370
1999	963947
2000	967614
2001	969849
2002	972033
2003	974024
2004	976153
2005	979493
2006	984336
2007	991510
2008	994773
2009	1005679
2010	1012012
2011	1015297
2012	1017964
2013	1019840
2014	1021337
2015	1023640
2016	1026841
2017	1029929
2018	1036095
2019	1045795
2020	1055356
2021	1059477
2022	1061664
2023	1066611