Year	2000 = 100
1980	27.10750578
1981	20.17255717
1982	20.55159143
1983	17.85909442
1984	18.80603762
1985	11.90438513
1986	23.63484207
1987	16.76188799
1988	18.51738496
1989	15.84847465
1990	22.11005711
1991	28.31943077
1992	9.381930917
1993	36.9375452
1994	119.4358138
1995	63.0118443
1996	39.38039852
1997	73.51495438
1998	48.36297351
1999	80.61277393
2000	100
2001	108.4129096
2002	100.341174
2003	150.7323978
2004	131.1642701
2005	140.8069982
2006	99.05719167
2007	142.6304394
2008	137.6985554
2009	131.6635093
2010	130.1236591
2011	222.2742583
2012	119.8774906
2013	147.5394742
2014	159.6109136
2015	242.6893559
2016	271.3294541
2017	283.7309873
2018	283.2587803
