Year	% change from 1990
1991	-0.240036683156808
1992	-0.422906985675919
1993	-0.582452436901681
1994	-0.572599086406023
1995	-0.25019745818794
1996	-0.291975664289545
1997	-0.101214798693505
1998	-95.294784716569
1999	-94.81766893194
2000	-94.4805645282465
2001	-94.1043214339819
2002	-92.6017103138365
2003	-92.3424170307391
2004	-91.2607020245004
2005	-89.8918731547606
2006	-88.9503848842855
2007	-87.9371215769012
2008	-87.0412715034644
2009	-88.4182701408209
2010	-89.8063914924587
2011	-89.8063914924615
2012	-89.8063914924639