Year	Number
1960	34054
1961	34976
1962	35897
1963	36835
1964	37830
1965	38863
1966	39905
1967	40777
1968	41456
1969	42132
1970	42857
1971	43635
1972	44480
1973	45393
1974	46371
1975	47386
1976	48399
1977	49275
1978	49957
1979	50532
1980	51030
1981	51469
1982	51880
1983	52267
1984	52604
1985	52858
1986	53017
1987	53390
1988	53948
1989	54358
1990	54616
1991	54768
1992	54859
1993	54929
1994	55024
1995	55129
1996	55264
1997	55751
1998	56513
1999	57199
2000	57786
2001	58255
2002	58598
2003	58838
2004	59030
2005	59219
2006	59432
2007	59755
2008	60160
2009	60530
2010	60869
2011	61083
2012	61085
2013	60972
2014	60841
2015	60753
2016	60772
2017	60871
2018	61027
2019	61255
2020	61831
2021	62739
2022	63611
2023	64407