Year	2004-2006 = 100
1961	22.8
1962	23.98
1963	23.67
1964	25.36
1965	26.15
1966	27.05
1967	31.6
1968	29.99
1969	31.1
1970	29
1971	34.51
1972	36
1973	38.42
1974	38.64
1975	37.51
1976	40.21
1977	43.2
1978	44.18
1979	43.33
1980	43.09
1981	45.9
1982	48.27
1983	44.67
1984	45.9
1985	45.44
1986	48.04
1987	47.42
1988	49.18
1989	48.05
1990	46.21
1991	50.53
1992	39
1993	51.77
1994	43.62
1995	51.55
1996	61.28
1997	58.62
1998	70.81
1999	83.49
2000	99.74
2001	110.63
2002	82.69
2003	95.15
2004	98.41
2005	85.86
2006	115.73
2007	135.05
2008	135.7
2009	154.86
2010	156.22
2011	164.99
2012	180.33
2013	192.35
2014	163.59
2015	150.41
2016	147.18