Year	2000 = 100
1980	46.13709542
1981	47.4609307
1982	39.52009879
1983	36.82713259
1984	44.12444544
1985	44.07734019
1986	46.9499858
1987	44.9444791
1988	51.95453319
1989	58.02395377
1990	63.97506081
1991	67.11864167
1992	64.64364195
1993	72.1554462
1994	79.04868405
1995	81.74257798
1996	90.63895352
1997	93.14482677
1998	103.9666107
1999	93.36260761
2000	100
2001	97.08062009
2002	91.99076442
2003	81.36425376
2004	92.60104252
2005	95.63484184
2006	91.51434929
2007	85.66430618
2008	84.90327555
2009	77.16577452
2010	69.89908942
2011	75.32459879
2012	77.451294
2013	72.06000782
2014	65.43856661
2015	57.03021272
2016	48.11605393
2017	47.48713939
2018	38.87147792