Year	Total
1971	177000000
1972	192000000
1973	201000000
1974	212000000
1975	234000000
1976	235000000
1977	248000000
1978	270000000
1979	450100000
1980	458100000
1981	497100000
1982	512100000
1983	538100000
1984	572100000
1985	598100000
1986	594100000
1987	751100000
1988	735100000
1989	729100000
1990	780100000
1991	823100000
1992	877200000
1993	927200000
1994	977200000
1995	812100000
1996	847200000
1997	907200000
1998	957200000
1999	886200000
2000	800100000
2001	899200000
2002	981200000
2003	1050000000
2004	1120000000
2005	1193000000
2006	1334000000
2007	1495000000
2008	1504000000