Year	2000 = 100
1980	64.25638312
1981	63.2984764
1982	65.03327452
1983	72.09249471
1984	50.24164622
1985	26.97702599
1986	28.51889632
1987	18.1535119
1988	40.89727417
1990	30.40750979
1991	59.72794702
1992	96.12581017
1993	84.52122825
1994	101.3453818
1995	72.68104067
1996	113.2557949
1997	95.07707105
1998	114.176858
1999	100.1445904
2000	100
2001	128.4143763
2002	159.9397743
2003	179.1340987
2004	234.3075082
2005	367.2095681
2006	420.3017237
2007	430.1253455
2008	422.4752844
2009	461.3346457
2010	452.3941375
2011	369.4161876
2012	375.1976814
2013	410.1188111
2014	386.7004354
2015	460.4417928
2016	423.5881253
2017	445.9187706
2018	356.905452