Year	Number
1960	84055
1961	83751
1962	83665
1963	83753
1964	83895
1965	84044
1966	84224
1967	84402
1968	84614
1969	84872
1970	85161
1971	85533
1972	86013
1973	86569
1974	87163
1975	87827
1976	88611
1977	89517
1978	90581
1979	91781
1980	93059
1981	94408
1982	95845
1983	97400
1984	99035
1985	100700
1986	102419
1987	104219
1988	106064
1989	107940
1990	109880
1991	111877
1992	113910
1993	116777
1994	119227
1995	120708
1996	122648
1997	124992
1998	127654
1999	130506
2000	133480
2001	136526
2002	139572
2003	142729
2004	146129
2005	150008
2006	154121
2007	158319
2008	162933
2009	167826
2010	172865
2011	177881
2012	182581
2013	186763
2014	189858
2015	193127
2016	197422
2017	201985
2018	206903
2019	212200
2020	217353
2021	221974
2022	226729
2023	232528