Year	Number
1960	3455253
1961	3606271
1962	3764224
1963	3925674
1964	4089765
1965	4263735
1966	4448115
1967	4641545
1968	4842439
1969	5050140
1970	5266138
1971	5488936
1972	5737053
1973	5993751
1974	6258783
1975	6534073
1976	6819390
1977	7118548
1978	7434210
1979	7763286
1980	8109487
1981	8471303
1982	8845176
1983	9227441
1984	9613344
1985	10001424
1986	10384666
1987	10759753
1988	11135157
1989	11510435
1990	11890063
1991	12273397
1992	12660713
1993	13050229
1994	13440086
1995	13749580
1996	14045468
1997	14342391
1998	14640178
1999	14935781
2000	15229497
2001	15524469
2002	15820051
2003	16111112
2004	16411301
2005	16790498
2006	17188176
2007	17589282
2008	17995882
2009	18409274
2010	18835465
2011	19275316
2012	19725140
2013	20180706
2014	20636838
2015	21088840
2016	21541817
2017	21994745
2018	22437808
2019	22869599
2020	23309111
2021	23753114
2022	24196351
2023	24641815