Year	Number
1960	3606810
1961	3733677
1962	3877019
1963	4032685
1964	4194958
1965	4364138
1966	4540173
1967	4721006
1968	4904983
1969	5089669
1970	5274856
1971	5475529
1972	5696360
1973	5926641
1974	6166073
1975	6417553
1976	6678326
1977	6947077
1978	7221995
1979	7495909
1980	7756660
1981	8003941
1982	8251093
1983	8503469
1984	8766067
1985	9044146
1986	9343395
1987	9667721
1988	10014574
1989	10382883
1990	10772937
1991	11185264
1992	11617009
1993	12068469
1994	12540088
1995	13021835
1996	13510516
1997	14008797
1998	14512878
1999	15021249
2000	15540866
2001	16078619
2002	16633644
2003	17194784
2004	17766599
2005	18358112
2006	18965044
2007	19579662
2008	20207802
2009	20855791
2010	21493726
2011	22193282
2012	22952757
2013	23760710
2014	24627339
2015	25552081
2016	26514599
2017	27518130
2018	28575048
2019	29661769
2020	30710978
2021	31703001
2022	32747309
2023	33967461