Year	2004-2006 = 100
1961	20.13
1962	21.55
1963	20.36
1964	21.9
1965	21.76
1966	22.39
1967	21.59
1968	24.87
1969	25.19
1970	26.92
1971	27.78
1972	27.72
1973	30.16
1974	31.67
1975	31.04
1976	30.71
1977	32.09
1978	34.17
1979	35.65
1980	38.76
1981	41.55
1982	41.39
1983	44.5
1984	48.49
1985	49.6
1986	52.55
1987	53.34
1988	56.4
1989	59.76
1990	61.88
1991	62.98
1992	68.13
1993	68.9
1994	70.18
1995	76.56
1996	78
1997	75.11
1998	75.11
1999	75.39
2000	78.08
2001	80.48
2002	85.79
2003	91.86
2004	95.72
2005	98.01
2006	106.27
2007	108.82
2008	113.84
2009	121.03
2010	123.78
2011	126.36
2012	136.08
2013	137.21
2014	140.39
2015	143.84
2016	144.56