Year	2004-2006 = 100
1961	28.15
1962	27.85
1963	27.59
1964	29.21
1965	30.5
1966	33.61
1967	34.41
1968	35.08
1969	35.83
1970	34.97
1971	40.2
1972	46.57
1973	42.07
1974	44.83
1975	52.9
1976	59.98
1977	57.36
1978	53.35
1979	46.7
1980	48.86
1981	49.61
1982	47.8
1983	50.12
1984	49.6
1985	55.08
1986	57.43
1987	57.54
1988	71.18
1989	72
1990	67.75
1991	79.07
1992	69
1993	88.18
1994	78.12
1995	72.59
1996	83.55
1997	77.43
1998	75.09
1999	84.3
2000	85.61
2001	85.66
2002	87.21
2003	96.63
2004	97.01
2005	98.09
2006	104.91
2007	105.39
2008	110.56
2009	141.89
2010	165.17
2011	174.44
2012	176.25
2013	179.29
2014	186.77
2015	180.4
2016	179.77