Year	2004-2006 = 100
1961	31.07
1962	31.44
1963	33.65
1964	31.62
1965	32.93
1966	34.38
1967	34.71
1968	33.67
1969	35.53
1970	35.32
1971	35.71
1972	38.01
1973	40.76
1974	45.66
1975	46.13
1976	55.74
1977	52.33
1978	57.37
1979	57.41
1980	56.9
1981	50.27
1982	47.89
1983	44.69
1984	49.25
1985	52.93
1986	54.55
1987	53.52
1988	57.99
1989	62.76
1990	62.46
1991	65.98
1992	67.02
1993	69.63
1994	71.21
1995	69.67
1996	71.17
1997	81.01
1998	80.19
1999	81.28
2000	90.42
2001	84.39
2002	93.2
2003	90.6
2004	92.92
2005	101.39
2006	105.69
2007	107.8
2008	108.59
2009	109.08
2010	107.63
2011	105.09
2012	107.14
2013	105.85
2014	111.04
2015	110.29
2016	111.57