Year	Number
1960	230481
1961	231948
1962	233146
1963	233742
1964	234458
1965	237122
1966	233225
1967	231549
1968	229172
1969	227658
1970	225446
1971	222701
1972	220001
1973	217398
1974	212295
1975	209551
1976	205495
1977	201928
1978	199486
1979	196694
1980	193080
1981	188741
1982	185091
1983	179208
1984	173376
1985	164214
1986	157369
1987	154115
1988	151462
1989	147842
1990	143462
1991	142522
1992	138151
1993	135322
1994	132769
1995	129863
1996	126871
1997	123213
1998	117218
1999	111289
2000	106975
2001	103244
2002	99638
2003	96735
2004	95224
2005	93989
2006	93452
2007	93526
2008	91421
2009	88028
2010	84863
2011	83346
2012	80051
2013	75057
2014	70953
2015	66870
2016	63338
2017	59765
2018	56968
2019	54515
2020	52215
2021	50056
2022	47963