Year	Total
1971	71010000
1972	71010000
1973	70010000
1974	71010000
1975	71010000
1976	71010000
1977	71010000
1978	71010000
1979	71010000
1980	98020000
1981	135000000
1982	162000000
1983	195000000
1984	214000000
1985	219000000
1986	222000000
1987	298100000
1988	313100000
1989	323100000
1990	334100000
1991	340100000
1992	359100000
1993	388100000
1994	420100000
1995	462100000
1996	485100000
1997	536100000
1998	515100000
1999	500100000
2000	523100000
2001	478100000
2002	389100000
2003	455100000
2004	473100000
2005	394100000
2006	310100000
2007	338100000
2008	1207000000