Year	Number
1960	4189386
1961	4315999
1962	4449016
1963	4585253
1964	4729533
1965	4881209
1966	5029387
1967	5179092
1968	5335075
1969	5495118
1970	5660726
1971	5839516
1972	6031769
1973	6237654
1974	6487351
1975	6778079
1976	7080043
1977	7400180
1978	7741783
1979	8098804
1980	8472867
1981	8861656
1982	9241709
1983	9543290
1984	9756023
1985	9941119
1986	10137606
1987	10312015
1988	10405037
1989	10525660
1990	10718531
1991	10908230
1992	11075709
1993	11254648
1994	11511290
1995	11796609
1996	12068791
1997	12350831
1998	12618570
1999	12905335
2000	13231789
2001	13550233
2002	13855688
2003	14157975
2004	14469105
2005	14811660
2006	15199862
2007	15624739
2008	16057614
2009	16495485
2010	16888820
2011	17226354
2012	17593602
2013	18005088
2014	18506560
2015	19086685
2016	19686813
2017	20335703
2018	20993202
2019	21607642
2020	22209433
2021	22814719
2022	23420005
2023	24034469