Year	2004-2006 = 100
1961	27.95
1962	28.01
1963	28.33
1964	28.68
1965	29.2
1966	28.48
1967	29.16
1968	26.4
1969	23.71
1970	23.42
1971	25.94
1972	25.9
1973	26.11
1974	28.38
1975	30.23
1976	28.61
1977	31.46
1978	33.04
1979	34.51
1980	37.07
1981	37.43
1982	38.56
1983	40.06
1984	43.11
1985	47.01
1986	49.51
1987	46.84
1988	56.31
1989	55.78
1990	50.6
1991	54.27
1992	57.13
1993	61.15
1994	63.25
1995	61.77
1996	66.27
1997	69.52
1998	70.98
1999	73.4
2000	81.25
2001	90.6
2002	91.5
2003	101.27
2004	99.83
2005	99.03
2006	101.14
2007	109.19
2008	124.75
2009	133.89
2010	139.29
2011	150.4
2012	157.26
2013	159.08
2014	160.8
2015	157.77
2016	157.93