Year	Number
1960	3292079
1961	3508800
1962	3740464
1963	3987790
1964	4252232
1965	4477083
1966	4712020
1967	4959515
1968	5220626
1969	5494964
1970	5784398
1971	6089359
1972	6411152
1973	6749305
1974	6993427
1975	7193403
1976	7399461
1977	7610906
1978	7828781
1979	8052977
1980	8284001
1981	8521078
1982	8765373
1983	9016766
1984	9275828
1985	9541690
1986	9798459
1987	10055188
1988	10319314
1989	10589931
1990	10868347
1991	11154407
1992	11448737
1993	11750330
1994	12059575
1995	12376650
1996	12702680
1997	13036539
1998	13379825
1999	13732330
2000	14094810
2001	14466008
2002	14847707
2003	15239673
2004	15642747
2005	16050754
2006	16430516
2007	16819677
2008	17219037
2009	17627176
2010	18046016
2011	18475263
2012	18915800
2013	19366063
2014	19828175
2015	20301811
2016	20787947
2017	21284860
2018	21794184
2019	22114342
2020	22427592
2021	22729443
2022	23018091
2023	23292495