Year	Number
1960	81362
1961	83685
1962	86010
1963	88408
1964	90750
1965	93003
1966	95369
1967	97809
1968	100332
1969	103059
1970	106008
1971	109191
1972	112581
1973	116154
1974	120005
1975	124168
1976	128596
1977	133226
1978	137994
1979	142925
1980	148024
1981	152982
1982	158007
1983	163237
1984	168539
1985	174258
1986	180139
1987	185953
1988	192131
1989	198063
1990	203602
1991	209289
1992	214835
1993	219769
1994	222659
1995	224407
1996	226181
1997	227818
1998	228711
1999	228485
2000	227971
2001	227185
2002	226132
2003	224935
2004	223598
2005	222249
2006	220966
2007	219674
2008	217838
2009	215644
2010	214185
2011	213405
2012	212938
2013	212713
2014	212426
2015	211945
2016	211409
2017	210809
2018	210061
2019	209084
2020	208364
2021	207918
2022	207492
2023	206988