Year	2004-2006 = 100
1961	20.84
1962	21.69
1963	22.19
1964	23.53
1965	27.01
1966	25.24
1967	25.74
1968	26.13
1969	27.07
1970	27.75
1971	29.37
1972	26.26
1973	21.09
1974	19.96
1975	22.6
1976	21.51
1977	21.88
1978	24.16
1979	26.29
1980	25.72
1981	25.85
1982	27.13
1983	29.97
1984	30.63
1985	34.09
1986	35.41
1987	36.66
1988	37.39
1989	39.81
1990	55.23
1991	57.2
1992	57.95
1993	60.06
1994	64.81
1995	65.25
1996	67.07
1997	68.76
1998	70.2
1999	71.87
2000	75.63
2001	81.05
2002	81.21
2003	94.34
2004	97.8
2005	100.99
2006	101.22
2007	102.78
2008	103.78
2009	105.65
2010	107.15
2011	109.95
2012	110.32
2013	85.14
2014	83.24
2015	84.66
2016	84.19