Year	Number
1960	4128880
1961	4251911
1962	4378604
1963	4508444
1964	4640795
1965	4774984
1966	4910790
1967	5047435
1968	5184095
1969	5320100
1970	5455197
1971	5589563
1972	5723759
1973	5858466
1974	5994300
1975	6131151
1976	6269983
1977	6412667
1978	6561919
1979	6720582
1980	6890346
1981	7071186
1982	7262658
1983	7462585
1984	7669863
1985	7884034
1986	8104921
1987	8332446
1988	8566331
1989	8805995
1990	9050115
1991	9296814
1992	9544055
1993	9790619
1994	10037522
1995	10286786
1996	10536942
1997	10788362
1998	11046215
1999	11311078
2000	11589761
2001	11871565
2002	12147518
2003	12415334
2004	12682108
2005	12948292
2006	13213330
2007	13477017
2008	13739299
2009	14000190
2010	14259687
2011	14521515
2012	14781942
2013	15043981
2014	15306316
2015	15567419
2016	15827690
2017	16087418
2018	16346950
2019	16604026
2020	16858333
2021	17109746
2022	17357886
2023	17602431