Year	Number
1960	413960291
1961	412769653
1962	418743973
1963	433202450
1964	447213567
1965	459257722
1966	471526114
1967	481355169
1968	491581923
1969	503319463
1970	514593894
1971	526379917
1972	535974775
1973	544875061
1974	555089869
1975	564437607
1976	572313900
1977	574770485
1978	569462196
1979	563076708
1980	558312292
1981	554748690
1982	553775597
1983	551049750
1984	545682845
1985	540910106
1986	537648681
1987	536904042
1988	537034535
1989	538054734
1990	541554829
1991	545061874
1992	547030779
1993	548569025
1994	548887724
1995	547615762
1996	544963888
1997	540370663
1998	535343745
1999	530300855
2000	524249938
2001	516671221
2002	506950144
2003	496868072
2004	486968320
2005	476399439
2006	468086063
2007	463367025
2008	460282493
2009	458224444
2010	456868027
2011	456334011
2012	457515487
2013	459476358
2014	461560259
2015	463009192
2016	464401785
2017	466769043
2018	467698986
2019	466614941
2020	463542014
2021	458098275
2022	451325465
2023	443811442