Year	Number
1960	113183
1961	112902
1962	113111
1963	113569
1964	114216
1965	114978
1966	115812
1967	116773
1968	117910
1969	119222
1970	120768
1971	122623
1972	124700
1973	126872
1974	129114
1975	131359
1976	133556
1977	135643
1978	137899
1979	140434
1980	143030
1981	145485
1982	147612
1983	150331
1984	154200
1985	158622
1986	163572
1987	169104
1988	175121
1989	181622
1990	188541
1991	195988
1992	203957
1993	212293
1994	220924
1995	229924
1996	239242
1997	248683
1998	258122
1999	267575
2000	277236
2001	287422
2002	298061
2003	309004
2004	319929
2005	330771
2006	344849
2007	363212
2008	378429
2009	390715
2010	404838
2011	418900
2012	429146
2013	432801
2014	434203
2015	439422
2016	450386
2017	465744
2018	485906
2019	510273
2020	535339
2021	559902
2022	588503
2023	622339