Year	2004-2006 = 100
1961	20.97
1962	21.53
1963	22.78
1964	26.22
1965	28.41
1966	32.14
1967	35.03
1968	37.07
1969	39.72
1970	42.96
1971	42.72
1972	44.13
1973	43.89
1974	44.8
1975	54.27
1976	50.2
1977	57.99
1978	59.18
1979	51.58
1980	50.26
1981	52.6
1982	69
1983	65.76
1984	65.96
1985	64.85
1986	59.59
1987	60
1988	56.95
1989	52.65
1990	54.81
1991	56.92
1992	53.8
1993	61.23
1994	55.45
1995	61.28
1996	61.5
1997	56.77
1998	55.23
1999	60.26
2000	75.08
2001	88.68
2002	107.94
2003	104.85
2004	104.26
2005	105.29
2006	90.45
2007	99.7
2008	99.61
2009	110.73
2010	120.82
2011	117.19
2012	119.26
2013	120.84
2014	120.85
2015	120.62
2016	120.58