Year	2004-2006 = 100
1961	27.97
1962	27.72
1963	26.76
1964	29.29
1965	29.81
1966	33.14
1967	32.91
1968	33.23
1969	34.05
1970	31.68
1971	40.47
1972	48.21
1973	40.55
1974	43.71
1975	53.04
1976	61.05
1977	57.14
1978	51.23
1979	41.88
1980	43.84
1981	45.06
1982	40.47
1983	46.48
1984	49.15
1985	53.68
1986	57.07
1987	55.34
1988	77.33
1989	76.93
1990	60.85
1991	64.32
1992	47.22
1993	76.73
1994	63.84
1995	55
1996	73.11
1997	65.57
1998	59.57
1999	77.3
2000	71.95
2001	70.25
2002	70.89
2003	87.16
2004	93.91
2005	99.13
2006	106.95
2007	103.24
2008	113.8
2009	143.52
2010	163.49
2011	177.54
2012	183.34
2013	169.29
2014	181.2
2015	170.19
2016	171.4