Year	2000 = 100
1981	54.53841632
1982	72.717556
1983	58.26268413
1984	50.97672533
1985	55.09318244
1986	54.80423967
1987	57.00979642
1988	52.50613507
1989	55.20032817
1990	59.95194452
1991	57.92263219
1992	60.15539885
1993	68.47024416
1994	70.69101205
1995	75.76543137
1996	85.83548114
1997	84.94201361
1998	91.22884378
1999	94.70333967
2000	100
2001	106.1895712
2002	98.61292164
2003	102.7950505
2004	108.975634
2005	790.4090124
2006	883.0599228
2007	932.2381999
2008	988.1021353
2009	1100.71346
2010	1095.569377
2011	1356.436161
2012	1490.294148
2013	1368.547091
2014	1209.265186
2015	1119.645258
2016	1142.699883
2017	1110.073197
2018	1126.782237