Year	2004-2006 = 100
1961	11.15
1962	11.42
1963	11.92
1964	12.3
1965	13.51
1966	14.51
1967	13.38
1968	13.98
1969	15.09
1970	16.52
1971	23.23
1972	14.35
1973	17.25
1974	24.62
1975	27.01
1976	20.11
1977	25.42
1978	24.95
1979	27.52
1980	24.89
1981	25.51
1982	34.08
1983	37.16
1984	49.84
1985	58.23
1986	59.6
1987	71.75
1988	78.91
1989	82.11
1990	86.28
1991	86.23
1992	91.43
1993	95.11
1994	94.56
1995	84.1
1996	78.08
1997	83.73
1998	81.69
1999	76.17
2000	75.8
2001	82.89
2002	86.71
2003	91
2004	99.39
2005	100.23
2006	100.38
2007	100.14
2008	97.82
2009	90.03
2010	86.15
2011	86.91
2012	84.68
2013	84.38
2014	64.48
2015	71.28
2016	77.5