Year	% change from 1990
1991	18.8682182382105
1992	11.7613195798774
1993	15.3645527385512
1994	55.934408703212
1995	76.9737305857751
1996	36.1339552151131
1997	29.588923611927
1998	35.5112902088865
1999	18.1923917385277
2000	32.166815479687
2001	75.7430860687516
2002	78.2416762611904
2003	93.4755280904157
2004	97.5222632110717
2005	98.7599567659015
2006	101.407751591908
2007	102.437498531451
2008	104.697302568199
2009	107.520735919547
2010	110.800888178764
2011	112.908897060551
2012	115.016905942339