Year	2004-2006 = 100
1961	12.49
1962	13.77
1963	17.65
1964	18.44
1965	20.49
1966	20.6
1967	19.12
1968	19.81
1969	20.37
1970	18.4
1971	17.73
1972	18.03
1973	16.71
1974	19.71
1975	22.03
1976	23.08
1977	24.59
1978	29.35
1979	34.31
1980	36.48
1981	41.92
1982	45.36
1983	46.75
1984	44.73
1985	44.12
1986	45.54
1987	44.89
1988	50.13
1989	50.36
1990	52.6
1991	54.67
1992	52.72
1993	45.25
1994	49.08
1995	56.95
1996	59.65
1997	63.62
1998	70.15
1999	70.61
2000	74.92
2001	69.84
2002	78.81
2003	84.36
2004	95.26
2005	99.01
2006	105.73
2007	112.06
2008	103.89
2009	96.35
2010	90.32
2011	96.27
2012	91.46
2013	84.53
2014	83.27
2015	80.76
2016	82.36