Year	% change from 1990
1991	-13.8672325436397
1992	27.9320268942491
1993	-21.712627777893
1994	-12.1033611354958
1995	-5.07069349128548
1996	-7.22412254794356
1997	-34.8681825862531
1998	-30.5697195058876
1999	-28.9079254626906
2000	-31.5429091263726
2001	-32.347608636204
2002	-32.1143160448936
2003	-29.4224462038239
2004	-27.4498293971904
2005	-29.4269271227753
2006	-28.4032723483125
2007	-27.783840315884
2008	-26.39472788545
2009	-24.5973784142375
2010	-21.2121313908154
2011	-19.5405753023669
2012	-18.0082669685745