Year	% change from 1990
1991	-0.0634265666163758
1992	-3.23591813373075
1993	-5.24256293497349
1994	-5.12504605230826
1995	-3.99304756059226
1996	-2.25246172722007
1997	-2.88636193735861
1998	-4.15925587108749
1999	-5.67157875545187
2000	-4.53315051117377
2001	-4.18229981663888
2002	-3.92200302390351
2003	-2.03096429983421
2004	-2.12455502005382
2005	-2.64396243704379
2006	-3.25936620601587
2007	-4.16134636754621
2008	-5.62693484561328
2009	-10.7413322697265
2010	-10.0010699746652
2011	-12.0958536270216
2012	-12.4111110220428