Year	2004-2006 = 100
1961	31.16
1962	35.34
1963	34.96
1964	30.89
1965	32.33
1966	31.75
1967	39.5
1968	32.84
1969	40.31
1970	43.07
1971	45.11
1972	45.88
1973	44.07
1974	53.06
1975	52.08
1976	47.51
1977	52.45
1978	52.66
1979	44.2
1980	45.47
1981	52.26
1982	43.26
1983	48.22
1984	43.91
1985	53.68
1986	52.12
1987	47.05
1988	58.94
1989	42.04
1990	38.06
1991	52.68
1992	60.84
1993	49.6
1994	63.7
1995	62.34
1996	74.68
1997	72.52
1998	75.04
1999	69.91
2000	71.89
2001	85.12
2002	82.98
2003	98.04
2004	93.9
2005	101.15
2006	104.95
2007	102.45
2008	99.06
2009	105.35
2010	91.05
2011	108.26