Year	Number
1960	452177
1961	461359
1962	469461
1963	477479
1964	485616
1965	494002
1966	502414
1967	510825
1968	519545
1969	529172
1970	541064
1971	554583
1972	567988
1973	581596
1974	596047
1975	611344
1976	627112
1977	643105
1978	658803
1979	673297
1980	685679
1981	695610
1982	703560
1983	710320
1984	716398
1985	723642
1986	732720
1987	742551
1988	752758
1989	762947
1990	773269
1991	784314
1992	796332
1993	809379
1994	823470
1995	838431
1996	854184
1997	870304
1998	886346
1999	901986
2000	917746
2001	933880
2002	949515
2003	963720
2004	976198
2005	987046
2006	996295
2007	1004275
2008	1010915
2009	1016592
2010	1021608
2011	1026001
2012	1029968
2013	1033338
2014	1036148
2015	1038456
2016	1040418
2017	1042695
2018	1060133
2019	1067469
2020	1059682
2021	1061862
2022	1063135
2023	1063006