Year	Number
1960	161433
1961	165271
1962	169334
1963	173774
1964	178497
1965	183278
1966	188258
1967	193552
1968	199143
1969	205196
1970	211718
1971	218576
1972	225802
1973	233360
1974	241190
1975	249339
1976	257891
1977	266883
1978	276345
1979	286256
1980	296606
1981	307458
1982	318749
1983	330410
1984	342366
1985	354507
1986	366788
1987	379237
1988	391859
1989	404509
1990	417027
1991	429324
1992	441366
1993	453088
1994	464281
1995	474722
1996	484411
1997	493697
1998	502843
1999	511886
2000	521033
2001	530363
2002	539772
2003	549309
2004	559254
2005	569913
2006	581415
2007	593880
2008	607458
2009	622705
2010	640119
2011	659542
2012	680168
2013	701246
2014	722544
2015	743649
2016	764190
2017	783999
2018	802920
2019	820794
2020	837417
2021	852733
2022	866825
2023	879338