Year	Number
1960	2919279
1961	2941875
1962	2953402
1963	2965424
1964	2982772
1965	3003595
1966	3043213
1967	3106329
1968	3177906
1969	3255163
1970	3334907
1971	3417645
1972	3505603
1973	3600223
1974	3703744
1975	3856744
1976	4050627
1977	4212094
1978	4352616
1979	4506652
1980	4671657
1981	4847466
1982	5034439
1983	5232518
1984	5441735
1985	5662582
1986	5892646
1987	6112084
1988	6320988
1989	6535834
1990	6756337
1991	6978402
1992	7202306
1993	7433413
1994	7672187
1995	7922849
1996	8192787
1997	8475019
1998	8755481
1999	9037532
2000	9323356
2001	9605944
2002	9882021
2003	10150170
2004	10412169
2005	10652596
2006	10888023
2007	11134380
2008	11374448
2009	11607700
2010	11829444
2011	12035743
2012	12226790
2013	12397862
2014	12552758
2015	12701666
2016	12846022
2017	12987065
2018	13130562
2019	13282181
2020	13444344
2021	13621101
2022	13815800
2023	14027444