Year	Number
1960	75256
1961	77219
1962	79382
1963	81785
1964	84521
1965	88001
1966	92062
1967	95794
1968	98838
1969	101491
1970	104360
1971	107402
1972	110413
1973	113392
1974	116167
1975	119456
1976	123040
1977	126270
1978	129327
1979	132012
1980	132928
1981	130815
1982	127797
1983	125317
1984	124161
1985	124906
1986	127839
1987	131527
1988	134530
1989	137618
1990	140949
1991	144281
1992	147269
1993	150107
1994	153126
1995	156825
1996	160756
1997	164441
1998	167797
1999	171509
2000	175426
2001	179128
2002	182376
2003	184675
2004	186913
2005	189374
2006	192101
2007	195613
2008	198381
2009	201668
2010	202242
2011	203202
2012	206231
2013	209650
2014	213467
2015	217393
2016	221194
2017	225066
2018	229884
2019	235639
2020	240853
2021	245206
2022	250166
2023	255604