Year	Number
1960	390288
1961	395358
1962	400855
1963	405629
1964	408167
1965	407556
1966	403326
1967	396175
1968	387702
1969	380103
1970	374810
1971	372314
1972	372001
1973	372962
1974	373826
1975	373677
1976	372261
1977	369941
1978	367085
1979	364260
1980	361814
1981	359882
1982	358165
1983	356180
1984	353296
1985	349163
1986	343624
1987	336948
1988	329588
1989	322174
1990	315089
1991	308622
1992	302931
1993	297354
1994	291529
1995	285272
1996	278544
1997	271535
1998	264406
1999	257441
2000	250788
2001	245634
2002	240467
2003	235306
2004	232295
2005	230563
2006	228771
2007	227018
2008	225348
2009	223773
2010	222127
2011	220302
2012	218427
2013	216571
2014	214705
2015	212741
2016	210706
2017	208638
2018	206498
2019	204336
2020	201999
2021	199225
2022	196496
2023	194083