Year	2004-2006 = 100
1961	21.45
1962	22.32
1963	22.76
1964	22.03
1965	22.23
1966	22.77
1967	25.71
1968	27.45
1969	27.64
1970	28.72
1971	32.62
1972	33.99
1973	34.79
1974	31.93
1975	34.38
1976	36.04
1977	35.93
1978	44.5
1979	32.5
1980	45.9
1981	48.15
1982	41.63
1983	36.73
1984	37.95
1985	39.19
1986	36.45
1987	44.82
1988	47.8
1989	48.93
1990	52.73
1991	54.41
1992	56.02
1993	55.06
1994	70.98
1995	69.46
1996	77.23
1997	75.5
1998	77.76
1999	76.87
2000	77.99
2001	77.4
2002	84.98
2003	91.87
2004	96.02
2005	100.41
2006	103.57
2007	108.03
2008	115.84
2009	102.96
2010	102.74
2011	106.04
2012	108.57
2013	108.71
2014	108.88
2015	109.03
2016	109.52