Year	2000 = 100
1980	5.825863282
1981	6.035816298
1982	6.773492655
1983	4.222496932
1984	3.888613933
1985	4.373347952
1986	11.47160197
1987	12.77555224
1988	13.58384915
1989	12.15616865
1990	13.52013085
1991	14.92397526
1992	12.42957364
1993	13.32429307
1994	8.200263218
1995	26.82926829
1996	64.74966741
1997	73.24257206
1998	70.28824834
1999	94.23503326
2000	100
2001	180.2660754
2002	112.4168514
2003	201.3303769
2004	242.1286031
2005	290.4656319
2006	447.8935698
2007	613.6033259
2008	839.6709534
2009	1241.019956
2010	1216.186253
2011	1545.898004
2012	1664.079823
2013	1353.348115
2014	1318.292683
2015	781.6109794
2016	514.8689734
2017	481.5547942
2018	467.8078104