Year	Total
1966	771000
1967	2241000
1968	3191000
1969	3707000
1970	4151000
1971	4109000
1972	3977000
1973	3878000
1974	4139000
1975	4609000
1976	3710000
1977	4304000
1978	4944000
1979	5536000
1980	5627000
1981	5407000
1982	5146000
1983	5532000
1984	5480000
1985	5408000
1986	5250000
1987	5007000
1988	4936000
1989	4960000
1990	4724400
1991	5444300
1992	5454100
1993	5015200
1994	4633100
1995	4515700
1996	4479100
1997	4222000
1998	4146400
1999	4262600
2000	3930800
2001	3613600
2002	3769500
2003	3445000
2004	3567400
2005	3720000
2006	3583600
2007	4962700
2008	4556200
2009	4326300
2010	3972600
2011	3655100
2012	3890700
2013	3597300
2014	3353100
2015	3008800
2016	2903800