Year	Number
1960	7751435
1961	8047470
1962	8363578
1963	8697200
1964	9047387
1965	9417207
1966	9802605
1967	10201068
1968	10613877
1969	11039551
1970	11473087
1971	11898457
1972	12322903
1973	12760405
1974	13203949
1975	13651908
1976	14102268
1977	14577346
1978	15087423
1979	15620613
1980	16187124
1981	16785962
1982	17411491
1983	18069461
1984	18753176
1985	19452161
1986	20160879
1987	20882094
1988	21626122
1989	22387803
1990	23162269
1991	23918235
1992	24655723
1993	25391830
1994	26133744
1995	26878347
1996	27615736
1997	28364264
1998	29137373
1999	29965129
2000	30851606
2001	31800343
2002	32779823
2003	33767122
2004	34791836
2005	35843010
2006	36925253
2007	38036793
2008	39186895
2009	40364444
2010	41517895
2011	42635144
2012	43725806
2013	44792368
2014	45831863
2015	46851488
2016	47894670
2017	48948137
2018	49953304
2019	50951450
2020	51985780
2021	53005614
2022	54027487
2023	55100586