Year	% change from 1990
1991	0.43899876596738
1992	1.15982390021012
1993	9.88977087015977
1994	5.64986825867992
1995	5.98380749091152
1996	-0.717073008037883
1997	6.53245172264285
1998	4.02436380615683
1999	-3.55242971016909
2000	-8.88795317346497
2001	-2.08159623786811
2002	-10.6001734316112
2003	-5.13207484241068
2004	-4.01852716539373
2005	-1.41580228796316
2006	-2.36092118867357
2007	0.097972184237749
2008	-12.5125070873495
2009	-16.8191141646933
2010	-18.2036487342828
2011	-17.8897579114245
2012	-17.5758670885663