Year	2004-2006 = 100
1961	16.81
1962	20.29
1963	22.1
1964	26.12
1965	28.24
1966	33.01
1967	32.34
1968	32.16
1969	30.49
1970	31.43
1971	32.5
1972	35.32
1973	34.42
1974	36.91
1975	31.66
1976	17.71
1977	18.57
1978	30.25
1979	43.74
1980	54.17
1981	54.43
1982	56.5
1983	53.97
1984	51.48
1985	50.58
1986	51.35
1987	52.81
1988	52.92
1989	51.95
1990	54.32
1991	57.71
1992	58.54
1993	59.71
1994	60.09
1995	60.16
1996	64.04
1997	73.93
1998	78.08
1999	80.18
2000	86.57
2001	85.9
2002	95.43
2003	99.3
2004	102.12
2005	100.26
2006	97.61
2007	104.85
2008	112.33
2009	99.35
2010	74.08
2011	84.92
2012	89.58
2013	93.83
2014	77.67
2015	77.46
2016	74.92