Year	Total
1960	5030000
1961	5847000
1962	5365000
1963	5930000
1964	5913000
1965	6541000
1966	6823000
1967	5894000
1968	6316000
1969	6479000
1970	6483000
1971	7240000
1972	7317000
1973	5742000
1974	7109000
1975	7172000
1976	7187000
1977	6274000
1978	6023000
1979	6943000
1980	7592000
1981	7532000
1982	7017000
1983	7246000
1984	6158000
1985	7126000
1986	6949000
1987	6431000
1988	7764000
1989	7888000
1990	7679000
1991	8383000
1992	7098000
1993	8219000
1994	5784000
1995	7061000
1996	6923000
1997	7721000
1998	7955000
1999	7430000
2000	7502000
2001	7237000
2002	7083000
2003	8135000
2004	8088000
2005	6575000
2006	7526000
2007	6364000
2008	6573000
2009	6612000
2010	7069000
2011	7165000