Year	Number
1960	5335759
1961	5442752
1962	5594678
1963	5765771
1964	5950567
1965	6144176
1966	6341360
1967	6541051
1968	6745096
1969	6943970
1970	7117988
1971	7265339
1972	7414039
1973	7581123
1974	7758020
1975	7940543
1976	8123578
1977	8307299
1978	8490739
1979	8667490
1980	8842639
1981	9016425
1982	9188031
1983	9358484
1984	9523027
1985	9683062
1986	9876907
1987	10108489
1988	10346301
1989	10227151
1990	10273582
1991	10331390
1992	10316990
1993	10275000
1994	10123478
1995	9923597
1996	9824109
1997	9760633
1998	9699610
1999	9698028
2000	9745185
2001	9812620
2002	9893590
2003	10000544
2004	10132689
2005	10274450
2006	10425864
2007	10580318
2008	10806088
2009	11038762
2010	11193587
2011	11318359
2012	11406329
2013	11475515
2014	11533223
2015	11579534
2016	11619625
2017	11657941
2018	11698416
2019	11743234
2020	11799469
2021	11997991
2022	12230840
2023	12372742