Year	Number
1960	8198000
1961	8271216
1962	8351928
1963	8437232
1964	8524224
1965	8610000
1966	8696496
1967	8785648
1968	8874552
1969	8960304
1970	9040000
1971	9115576
1972	9188968
1973	9257272
1974	9317584
1975	9367000
1976	9411000
1977	9463000
1978	9525000
1979	9584000
1980	9643000
1981	9710000
1982	9776000
1983	9843000
1984	9910000
1985	9975000
1986	10043000
1987	10111000
1988	10140000
1989	10170000
1990	10189348
1991	10194050
1992	10216470
1993	10239050
1994	10226955
1995	10193831
1996	10159569
1997	10117433
1998	10071963
1999	10026738
2000	9979610
2001	9928549
2002	9865548
2003	9796749
2004	9730146
2005	9663915
2006	9604924
2007	9560953
2008	9527985
2009	9504583
2010	9483836
2011	9461643
2012	9446836
2013	9443211
2014	9448515
2015	9461076
2016	9469379
2017	9458989
2018	9438785
2019	9419758
2020	9379952
2021	9302585
2022	9228071
2023	9178298