Year	% change from 1990
1991	-1.87274779770973
1992	-6.57063843002707
1993	-1.45077566956032
1994	-2.52542431367909
1995	2.28239597351829
1996	2.83056537363759
1997	2.97204434651008
1998	3.00704437115802
1999	5.14105995849292
2000	4.53718629379316
2001	4.64218636773688
2002	5.65225750158977
2003	7.5388081259212
2004	8.34035798616759
2005	10.0129647978625
2006	11.1487402455917
2007	12.4245157919125
2008	13.695361757297
2009	15.9333915023884
2010	15.9043069748641
2011	17.0633500446127
2012	18.2223931143614