Year	2004-2006 = 100
1961	24.84
1962	28.05
1963	29.55
1964	29.46
1965	29.75
1966	31.65
1967	34.42
1968	32.05
1969	34.69
1970	33.03
1971	33.57
1972	33.5
1973	24.63
1974	28.98
1975	27.58
1976	32.67
1977	38.99
1978	40.47
1979	40.53
1980	43.69
1981	43.02
1982	43.04
1983	42.92
1984	32.97
1985	33.78
1986	37.56
1987	34.52
1988	44
1989	41.74
1990	45.75
1991	49.4
1992	52.76
1993	50.24
1994	51.99
1995	53.24
1996	61.73
1997	57.41
1998	76.63
1999	74.93
2000	68.91
2001	83.43
2002	92.02
2003	93.58
2004	87.98
2005	102.42
2006	109.6
2007	115.76
2008	139.28
2009	113.47
2010	145.66
2011	128.03
2012	140.05
2013	146.18
2014	153.24
2015	163.26
2016	176.35