Year	% change from 1990
1991	14.8652865268629
1992	20.5536194596428
1993	8.53979486217806
1994	18.3799032414469
1995	14.6376570168345
1996	14.026889227953
1997	70.1383367840987
1998	21.3837938495052
1999	15.3226024099966
2000	8.16063168800325
2001	10.1478366178604
2002	27.770087700139
2003	18.9578160735213
2004	24.5311987697129
2005	27.7181291026015
2006	45.3606364646628
2007	38.5610195683611
2008	18.8535535307981
2009	25.809798069638
2010	19.1734145856342
2011	40.8135628119964
2012	37.4979217743255