Year	Number
1960	67156
1961	68366
1962	69808
1963	71381
1964	72920
1965	74265
1966	75476
1967	76631
1968	77748
1969	78935
1970	80232
1971	81550
1972	82978
1973	84490
1974	85880
1975	87126
1976	88365
1977	89646
1978	90923
1979	92376
1980	93057
1981	93849
1982	96912
1983	100104
1984	101412
1985	102648
1986	105018
1987	107690
1988	110134
1989	112363
1990	114134
1991	116303
1992	118555
1993	119284
1994	119947
1995	122158
1996	124369
1997	125826
1998	127234
1999	128611
2000	129908
2001	131138
2002	132469
2003	134278
2004	136488
2005	138105
2006	139204
2007	140293
2008	141656
2009	143238
2010	144834
2011	146775
2012	148875
2013	151258
2014	153382
2015	156297
2016	161071
2017	166462
2018	172386
2019	178660
2020	184439
2021	189609
2022	194859
2023	201034