Year	Number
1960	2165778
1961	2199613
1962	2232197
1963	2264268
1964	2298479
1965	2334256
1966	2371033
1967	2410128
1968	2451970
1969	2496171
1970	2543021
1971	2593048
1972	2646882
1973	2705351
1974	2767613
1975	2833352
1976	2903004
1977	2977376
1978	3056803
1979	3141356
1980	3230550
1981	3322657
1982	3416334
1983	3510855
1984	3606657
1985	3703020
1986	3799178
1987	3894670
1988	3990142
1989	4086269
1990	4181364
1991	4277820
1992	4376559
1993	4475086
1994	4573707
1995	4670024
1996	4764443
1997	4864134
1998	4974159
1999	5097465
2000	5233752
2001	5381751
2002	5543708
2003	5720066
2004	5912503
2005	6122831
2006	6344461
2007	6574042
2008	6814004
2009	7064346
2010	7327584
2011	7602452
2012	7878998
2013	8157026
2014	8436956
2015	8715877
2016	8995906
2017	9276176
2018	9555273
2019	9830580
2020	10104338
2021	10381555
2022	10661692
2023	10941583