Year	Number
1960	3589290
1961	3665076
1962	3746296
1963	3835639
1964	3934872
1965	4047409
1966	4169591
1967	4296185
1968	4427899
1969	4563993
1970	4705422
1971	4848645
1972	4995574
1973	5150747
1974	5309220
1975	5464733
1976	5611221
1977	5755555
1978	5896064
1979	5944156
1980	5740461
1981	5149800
1982	4675918
1983	4628135
1984	4779805
1985	4922083
1986	4907729
1987	4861986
1988	4903210
1989	5052384
1990	5077301
1991	5119303
1992	5766047
1993	6722019
1994	7452377
1995	7957593
1996	8336155
1997	8716812
1998	9111376
1999	9538092
2000	9716430
2001	9817923
2002	10488288
2003	11313831
2004	11758412
2005	12111730
2006	12525733
2007	12872747
2008	13184652
2009	13506299
2010	13804200
2011	14116918
2012	14451010
2013	14782614
2014	15125207
2015	15456438
2016	15766736
2017	16081817
2018	16402090
2019	16728622
2020	17072920
2021	17413008
2022	17739100
2023	18097715