Year	Number
1960	25309533
1961	25519603
1962	25753068
1963	25960708
1964	26143238
1965	26323655
1966	26479971
1967	26633598
1968	26774403
1969	26895736
1970	27012750
1971	27137139
1972	27240589
1973	27304012
1974	27331069
1975	27336711
1976	27336512
1977	27332841
1978	27337338
1979	27363607
1980	27396170
1981	27403494
1982	27390617
1983	27395640
1984	27433466
1985	27490745
1986	27550103
1987	27604622
1988	27662925
1989	27734053
1990	27816770
1991	27903023
1992	27980155
1993	28050576
1994	28126906
1995	28207182
1996	28287113
1997	28370938
1998	28466582
1999	28576570
2000	28695232
2001	28822894
2002	28964154
2003	29120962
2004	29309526
2005	29533818
2006	29773916
2007	30029168
2008	30290652
2009	30543717
2010	30805860
2011	31069406
2012	31309446
2013	31543950
2014	31799385
2015	32074811
2016	32340918
2017	32581496
2018	32798279
2019	33000535
2020	33133126
2021	33112733
2022	33499858
2023	33788722