Year	Total
1960	2685000
1961	2899000
1962	3267000
1963	3419000
1964	3809000
1965	4252000
1966	4191000
1967	4583000
1968	5177000
1969	4933000
1970	4971000
1971	5438000
1972	5797000
1973	6265000
1974	6586000
1975	6649000
1976	7045000
1977	6193000
1978	6939000
1979	7627000
1980	7189000
1981	7982000
1982	7953000
1983	9088000
1984	9106000
1985	8803000
1986	8272000
1987	8880000
1988	9360000
1989	10180000
1990	10420000
1991	9470000
1992	10030000
1993	10250000
1994	9600000
1995	10450000
1996	8931000
1997	9439000
1998	9949000
1999	10440000
2000	12190000
2001	10360000
2002	11120000
2003	9070000
2004	9353000
2005	11670000
2006	10260000
2007	11490000
2008	11960000
2009	10770000
2010	10110000
2011	10390000