Year	Number
1960	690173
1961	683837
1962	675039
1963	665612
1964	657593
1965	649491
1966	639888
1967	629663
1968	618582
1969	607025
1970	594492
1971	582711
1972	572373
1973	561805
1974	551360
1975	540999
1976	530184
1977	510589
1978	491485
1979	473116
1980	455398
1981	440204
1982	430030
1983	420141
1984	410476
1985	401233
1986	392205
1987	383459
1988	375867
1989	368490
1990	361118
1991	354059
1992	347362
1993	340654
1994	333815
1995	326709
1996	319832
1997	313175
1998	306498
1999	300145
2000	294313
2001	289464
2002	285082
2003	280571
2004	276160
2005	272130
2006	268551
2007	265111
2008	261859
2009	258792
2010	255937
2011	254101
2012	250572
2013	246734
2014	242900
2015	239464
2016	235807
2017	231939
2018	228427
2019	225069
2020	221657
2021	218168
2022	215837
2023	214107