Year	2004-2006 = 100
1961	13.79
1962	11.24
1963	12.39
1964	15.63
1965	16.67
1966	19.68
1967	22.31
1968	25.46
1969	23.28
1970	25.49
1971	26.61
1972	27.77
1973	29.63
1974	32.84
1975	30.29
1976	28.03
1977	35.33
1978	40.42
1979	36.41
1980	42.43
1981	41.89
1982	44.93
1983	40.5
1984	40.44
1985	39.82
1986	40.74
1987	46.61
1988	44.37
1989	49.6
1990	53.61
1991	51.13
1992	62.46
1993	67.75
1994	64.17
1995	70.24
1996	76.66
1997	84.38
1998	78.04
1999	84.95
2000	97.47
2001	93.11
2002	83.66
2003	87.41
2004	98.49
2005	102
2006	99.52
2007	99.22
2008	95.14
2009	95.34
2010	97.37
2011	87.05
2012	106.74
2013	98.44
2014	101.07
2015	98.79
2016	91.93