Year	% change from 1990
1991	-13.0982390598647
1992	28.2507571498522
1993	-20.4425926261765
1994	-10.1847989699135
1995	-2.88306341923433
1996	-5.22977457790029
1997	-31.6706262127999
1998	-27.0642534593134
1999	-27.041584302062
2000	-28.5545238570211
2001	-29.7396673981248
2002	-28.842422154114
2003	-29.3184744563936
2004	-28.3246586024918
2005	-25.8328648374168
2006	-24.7216227489527
2007	-24.9605556663826
2008	-21.5982662628534
2009	-18.4005549409695
2010	-15.659853829274
2011	-14.8164523675668
2012	-13.9730509058595