Year	Total
1971	78010000
1972	96020000
1973	124000000
1974	130000000
1975	165000000
1976	188000000
1977	231000000
1978	277000000
1979	386100000
1980	458100000
1981	480100000
1982	544100000
1983	570100000
1984	463100000
1985	475100000
1986	487100000
1987	499100000
1988	511100000
1989	523100000
1990	535100000
1991	547100000
1992	559100000
1993	571100000
1994	583100000
1995	600100000
1996	660100000
1997	927200000
1998	858200000
1999	900200000
2000	939200000
2001	923200000
2002	913200000
2003	921200000
2004	1012000000
2005	965200000
2006	1083000000
2007	1249000000
2008	1293000000