Year	Number
1960	8326462
1961	8577490
1962	8841338
1963	9115091
1964	9406702
1965	9712785
1966	10014505
1967	10320500
1968	10638899
1969	10966145
1970	11305206
1971	11668921
1972	12057260
1973	12469591
1974	12950962
1975	13497543
1976	14066007
1977	14667218
1978	15305806
1979	15973034
1980	16673586
1981	17404336
1982	18128631
1983	18733995
1984	19165837
1985	19517196
1986	19887452
1987	20230532
1988	20453819
1989	20718709
1990	21090886
1991	21453711
1992	21780059
1993	22163251
1994	22703631
1995	23290602
1996	23862258
1997	24454372
1998	25029144
1999	25634162
2000	26298773
2001	26947253
2002	27570318
2003	28188977
2004	28831550
2005	29540577
2006	30332968
2007	31191163
2008	32065241
2009	32948155
2010	33739933
2011	34419624
2012	35159792
2013	35990704
2014	37003245
2015	38171178
2016	39377169
2017	40679828
2018	41999059
2019	43232093
2020	44440486
2021	45657202
2022	46874204
2023	48109006