Year	Number
1960	613626
1961	643385
1962	674633
1963	707399
1964	741805
1965	777783
1966	815560
1967	855172
1968	896768
1969	940264
1970	979993
1971	1009184
1972	1039295.0000000001
1973	1070225
1974	1102128
1975	1134991
1976	1168889
1977	1203712
1978	1239630
1979	1276631
1980	1314799
1981	1354007
1982	1394452
1983	1436114
1984	1483998
1985	1544986
1986	1608712
1987	1675218
1988	1744730
1989	1817089
1990	1892729
1991	1971699
1992	2054270
1993	2140257
1994	2230179
1995	2324097
1996	2422338
1997	2524683
1998	2631752
1999	2743626
2000	2854965
2001	2954597
2002	3058596
2003	3167029
2004	3280271
2005	3398071
2006	3521143
2007	3649576
2008	3783823
2009	3923594
2010	4069744
2011	4222391
2012	4382081
2013	4548947
2014	4723348
2015	4905658
2016	5096273
2017	5295610
2018	5504107
2019	5680794
2020	5862067
2021	6047002
2022	6235728
2023	6428311