Year	Number
1960	69197
1961	72440
1962	75773
1963	79224
1964	82774
1965	86372
1966	89854
1967	92972
1968	95700
1969	98082
1970	100135
1971	102609
1972	105706
1973	108683
1974	111451
1975	114143
1976	116902
1977	119837
1978	122976
1979	126312
1980	129789
1981	133237
1982	136559
1983	139966
1984	143687
1985	147792
1986	152319
1987	157315
1988	162815
1989	168784
1990	175009
1991	181408
1992	187297
1993	192056
1994	195979
1995	199272
1996	201937
1997	203896
1998	205401
1999	206818
2000	208267
2001	209581
2002	210282
2003	211839
2004	216080
2005	221617
2006	227234
2007	233193
2008	239241
2009	244397
2010	248194
2011	249110
2012	246782
2013	251068
2014	265377
2015	277458
2016	284642
2017	291268
2018	296414
2019	299858
2020	299911
2021	298172
2022	297195
2023	295360