Year	2007 US$
1960	51.66
1961	60.15
1962	61.22
1963	75.61
1964	75.32
1965	85.28
1966	89.9
1967	104.1
1968	98.08
1969	107
1970	113.5
1971	102
1972	115.5
1973	90.77
1974	107.7
1975	130.2
1976	83.85
1977	88.35
1978	114.9
1979	113.7
1980	106.5
1981	91.98
1982	124.4
1983	108.5
1984	107.1
1985	121.7
1986	118.5
1987	86.03
1988	122
1989	102.2
1990	91.1
1991	96.77
1992	96.67
1993	95.95
1994	100.1
1995	105.1
1996	86.44
1997	87.73
1998	92.56
1999	90.47
2000	95.93
2001	90.32
2002	94.13
2003	93.1
2004	93.39
2005	98.62
2006	119.1
2007	127