Year	% change from 1990
1991	-17.3306367602057
1992	-5.33604075786185
1993	-9.91641708444561
1994	-9.61976691190833
1995	-0.541213620678438
1996	-2.19700175792695
1997	1.67287909369098
1998	-0.5509798815027
1999	-14.0267921088613
2000	10.9943681229246
2001	8.53652581548277
2002	6.29476202877792
2003	-15.7965199557263
2004	-16.7609382121232
2005	-1.84256787551274
2006	1.5874243114786
2007	8.87427566898884
2008	16.0838107949736
2009	23.1273194869458
2010	29.1311283286672
2011	30.4224396119539
2012	31.7137508952406