Year	2004-2006 = 100
1961	27.56
1962	28.3
1963	29.21
1964	30.09
1965	30.88
1966	32.12
1967	31.28
1968	31.78
1969	30.42
1970	30.81
1971	30.89
1972	31.36
1973	32.97
1974	34.15
1975	35.35
1976	35.85
1977	36.24
1978	36.73
1979	37.04
1980	37.46
1981	37.8
1982	38
1983	38.76
1984	38.44
1985	34.63
1986	29.24
1987	32.7
1988	37.69
1989	38.61
1990	41.53
1991	47.89
1992	50.84
1993	53.88
1994	57.33
1995	61.36
1996	64.18
1997	66.94
1998	70.35
1999	73.76
2000	77.54
2001	80.76
2002	84.04
2003	88.42
2004	94.04
2005	99.22
2006	106.74
2007	111.64
2008	118.58
2009	125
2010	133.38
2011	130.64
2012	137.02
2013	139.38
2014	132.57
2015	134.86
2016	136.04