Year	Number
1960	205770
1961	212574
1962	219402
1963	226241
1964	232890
1965	239548
1966	245936
1967	251634
1968	256876
1969	261816
1970	266344
1971	270605
1972	274577
1973	278042
1974	281172
1975	284240
1976	287622
1977	291353
1978	295214
1979	299041
1980	303358
1981	308327
1982	313291
1983	318290
1984	323605
1985	329258
1986	335272
1987	341225
1988	346787
1989	352001
1990	356796
1991	360735
1992	364109
1993	367310
1994	369886
1995	371799
1996	373719
1997	375852
1998	377909
1999	379776
2000	381328
2001	382971
2002	384630
2003	386130
2004	387652
2005	389132
2006	390561
2007	392009
2008	393827
2009	396052
2010	398670
2011	401798
2012	405225
2013	408884
2014	412746
2015	416609
2016	420402
2017	423966
2018	427098
2019	429845
2020	432897
2021	436104
2022	439303
2023	442519