Year	% change from 1990
1991	10.8260598261197
1992	10.5025027129046
1993	9.88258619094415
1994	5.55404017231704
1995	17.2312978390973
1996	22.2405603062563
1997	26.999306406353
1998	-22.0488247061039
1999	-12.9110315347061
2000	0.234230722951345
2001	15.0575668245896
2002	22.4605386865123
2003	31.4187213977895
2004	30.2998461713719
2005	36.0427214700596
2006	43.9240155402379
2007	48.5311071655428
2008	56.1837989309326
2009	57.0023366564875
2010	66.9914322825413
2011	71.6967099065081
2012	75.9278081903692