Year	Total
1960	7554000000
1961	8225000000
1962	9385000000
1963	10750000000
1964	12810000000
1965	12560000000
1966	13880000000
1967	15390000000
1968	17130000000
1969	19100000000
1970	21180000000
1971	23450000000
1972	26610000000
1973	30170000000
1974	33050000000
1975	38170000000
1976	43120000000
1977	47540000000
1978	53900000000
1979	58200000000
1980	61560000000
1981	64350000000
1982	67480000000
1983	74910000000
1984	79840000000
1985	85790000000
1986	89600000000
1987	93300000000
1988	91360000000
1989	93530000000
1990	96930000000
1991	106800000000
1992	109600000000
1993	111500000000
1994	111200000000
1995	108900000000
1996	120500000000
1997	119100000000
1998	123200000000
1999	127000000000
2000	128700000000
2001	133900000000
2002	133000000000
2003	141600000000
2004	147100000000
2005	144600000000
2006	147100000000
2007	145800000000
2008	155600000000