Year	Number
1960	409976
1961	436168
1962	459238
1963	481252
1964	501999
1965	519251
1966	534693
1967	548987
1968	562513
1969	574756
1970	585020
1971	595290
1972	606378
1973	616381
1974	625921
1975	634264
1976	641861
1977	648965
1978	655452
1979	662510
1980	669928
1981	678905
1982	690432
1983	704266
1984	719729
1985	736417
1986	755067
1987	775074
1988	794598
1989	815776
1990	835029
1991	851393
1992	864917
1993	872360
1994	874820
1995	879945
1996	886277
1997	887774
1998	886629
1999	882176
2000	873427
2001	861409
2002	847482
2003	834056
2004	822978
2005	813819
2006	807185
2007	803897
2008	805000
2009	811529
2010	822117
2011	837499
2012	860529
2013	888887
2014	919010
2015	951157
2016	983551
2017	1014539
2018	1046966
2019	1080361
2020	1108440
2021	1143949
2022	1176497
2023	1191792