Year	Total
1971	44010000
1972	72010000
1973	79010000
1974	85020000
1975	95020000
1976	108000000
1977	122000000
1978	142000000
1979	164000000
1980	179000000
1981	193000000
1982	232000000
1983	249000000
1984	261000000
1985	310100000
1986	302100000
1987	330100000
1988	330100000
1989	334100000
1990	317100000
1991	319100000
1992	340100000
1993	348100000
1994	295100000
1995	289100000
1996	321100000
1997	350100000
1998	395100000
1999	400100000
2000	387100000
2001	387100000
2002	457100000
2003	496100000
2004	548100000
2005	518100000
2006	803100000
2007	778100000
2008	1075000000