Year	Number
1960	469620
1961	483294
1962	497343
1963	511803
1964	526406
1965	541209
1966	555680
1967	569216
1968	582323
1969	595568
1970	608753
1971	621302
1972	633320
1973	645140
1974	657175
1975	669729
1976	683027
1977	697096
1978	712134
1979	728923
1980	745988
1981	762590
1982	779550
1983	796843
1984	814540
1985	832455
1986	849773
1987	865835
1988	880664
1989	894555
1990	908031
1991	920077
1992	931647
1993	944008
1994	956014
1995	967377
1996	979797
1997	994332
1998	1009717
1999	1025035
2000	1039861
2001	1054152
2002	1068010
2003	1081640
2004	1095170
2005	1108479
2006	1121851
2007	1135166
2008	1147436
2009	1158816
2010	1170536
2011	1182573
2012	1194553
2013	1206701
2014	1218997
2015	1231191
2016	1243527
2017	1255948
2018	1268119
2019	1280233
2020	1295071
2021	1312463
2022	1330733
2023	1350081