Year	% change from 1990
1991	-1.99508777237186
1992	-4.25690749320242
1993	-5.36890739493242
1994	-1.65471691562137
1995	-3.19612245139763
1996	0.561692154629956
1997	-1.68362059467471
1998	1.37025037322376
1999	-8.05386341403613
2000	-10.3747647024275
2001	-12.8972935298916
2002	-13.2898401859512
2003	-11.6620522701777
2004	-15.2765058993301
2005	-16.5394109560211
2006	-19.878602756495
2007	-18.09965519666
2008	-21.732307774847
2009	-23.0686592591871
2010	-24.3963627287634
2011	-25.0932134532625
2012	-25.761618690156