Year	Number
1960	112747
1961	115488
1962	118182
1963	120738
1964	123130
1965	125297
1966	127420
1967	129360
1968	131373
1969	133617
1970	136235
1971	138919
1972	141427
1973	143769
1974	146258
1975	148450
1976	150071
1977	151606
1978	153377
1979	155384
1980	158038
1981	161292
1982	165253
1983	169687
1984	173699
1985	176864
1986	179245
1987	180955
1988	182360
1989	183591
1990	184622
1991	185859
1992	187324
1993	188526
1994	190015
1995	192030
1996	193228
1997	192107
1998	189211
1999	184803
2000	178705
2001	171987
2002	164635
2003	157547
2004	151548
2005	146101
2006	141153
2007	135277
2008	130275
2009	124867
2010	120494
2011	115698
2012	111649
2013	109050
2014	107437
2015	106836
2016	105106
2017	103434
2018	101181
2019	99407
2020	97423
2021	94536
2022	92691