Year	Number
1960	448192
1961	455488
1962	460973
1963	466524
1964	472149
1965	477827
1966	483581
1967	489404
1968	495306
1969	501262
1970	507298
1971	517851
1972	533245
1973	549052
1974	565351
1975	582134
1976	599439
1977	617209
1978	635531
1979	654397
1980	673850
1981	686444
1982	695503
1983	704682
1984	713995
1985	723405
1986	742802
1987	773025
1988	804522
1989	837210
1990	871274
1991	894705
1992	906536
1993	918491
1994	930620
1995	942910
1996	956674
1997	971917
1998	987424
1999	1003178
2000	1019206
2001	1031638.9999999999
2002	1040385
2003	1049206
2004	1058114
2005	1067073
2006	1076589
2007	1086667
2008	1098103
2009	1110266
2010	1126001
2011	1146109
2012	1166605
2013	1185883
2014	1203951
2015	1222294
2016	1240942
2017	1259875
2018	1279096
2019	1292232
2020	1304851
2021	1316757
2022	1327762
2023	1337786