Year	2004-2006 = 100
1961	28.21
1962	28.34
1963	28.78
1964	29.28
1965	30.42
1966	28.57
1967	29.31
1968	30.17
1969	31.25
1970	32.49
1971	32.44
1972	30.26
1973	34.24
1974	34.85
1975	36.38
1976	35.07
1977	34.09
1978	35.32
1979	33.02
1980	37.09
1981	38.78
1982	32.88
1983	44.48
1984	44.94
1985	46.7
1986	43.92
1987	51.06
1988	56.24
1989	59.67
1990	62.82
1991	66.39
1992	62.01
1993	71.25
1994	67.84
1995	74.9
1996	73.82
1997	75.67
1998	76.1
1999	79.57
2000	84.92
2001	88.22
2002	90.23
2003	93.94
2004	98.42
2005	100.26
2006	101.33
2007	99.11
2008	107.49
2009	113
2010	113.44
2011	123.9
2012	138.01
2013	130.45
2014	139.6
2015	139.02
2016	139.37