Year	Total
1960	201000000000
1961	214000000000
1962	233000000000
1963	251000000000
1964	272000000000
1965	291100000000
1966	317100000000
1967	340100000000
1968	382100000000
1969	427100000000
1970	466100000000
1971	494900000000
1972	561800000000
1973	579400000000
1974	578300000000
1975	588200000000
1976	606600000000
1977	645400000000
1978	674600000000
1979	682900000000
1980	717600000000
1981	722400000000
1982	729700000000
1983	751100000000
1984	777800000000
1985	794000000000
1986	817800000000
1987	849800000000
1988	892300000000
1989	905700000000
1990	924200000000
1991	955600000000
1992	936100000000
1993	995000000000
1994	1009000000000
1995	1043000000000
1996	1083000000000
1997	1076000000000
1998	1128000000000
1999	1145000000000
2000	1193000000000
2001	1203000000000
2002	1265000000000
2003	1276000000000
2004	1292000000000
2005	1359000000000
2006	1352000000000
2007	1392000000000
2008	1380000000000