Year	Number
1960	274087
1961	279139
1962	285430
1963	292171
1964	298183
1965	302638
1966	304986
1967	305563
1968	305403
1969	306031
1970	308575
1971	313337
1972	319759
1973	327216
1974	334697
1975	341436
1976	347168
1977	352113
1978	356611
1979	361208
1980	366260
1981	372210
1982	378955
1983	385709
1984	391493
1985	395741
1986	398325
1987	399541
1988	399879
1989	400066
1990	400538
1991	401366
1992	402825
1993	404471
1994	405601
1995	406087
1996	405991
1997	405720
1998	405414
1999	405295
2000	405384
2001	407413
2002	409201
2003	410718
2004	410947
2005	411151
2006	411920
2007	413380
2008	415091
2009	416969
2010	419140
2011	420845
2012	421522
2013	421582
2014	420832
2015	419291
2016	417834
2017	416305
2018	414228
2019	411726
2020	408991
2021	405950
2022	403377
2023	401505