Year	Number
1960	59126
1961	63090
1962	67325
1963	71845
1964	76676
1965	81816
1966	87309
1967	93170
1968	99434
1969	107102
1970	115374
1971	124284
1972	133897
1973	144223
1974	155361
1975	167360
1976	182337
1977	200214
1978	219871
1979	241459
1980	265200
1981	291201
1982	319792
1983	351190
1984	385721
1985	423537
1986	452238
1987	472181
1988	493032
1989	514741.99999999994
1990	537441
1991	561141
1992	585920
1993	611721
1994	638696
1995	666861
1996	696309
1997	739213
1998	795344
1999	855737
2000	920808
2001	990628
2002	1065850
2003	1146783
2004	1233987
2005	1327553
2006	1428359
2007	1514246
2008	1586762
2009	1662536
2010	1742041
2011	1825349
2012	1912763
2013	2004106
2014	2099945
2015	2200368
2016	2305593
2017	2415851
2018	2531381
2019	2652720
2020	2780331
2021	2914619
2022	3055788
2023	3203923