Year	% change from 1990
1991	-9.13132295965069
1992	-15.7138949871351
1993	-18.9114135741767
1994	-20.5033685242639
1995	-19.4566282230574
1996	-19.895064193348
1997	-21.7480205198827
1998	-28.7896315111375
1999	-31.8154941864975
2000	-29.8262605994625
2001	-29.9982949058444
2002	-31.0999736459681
2003	-29.0556767400799
2004	-27.9522585063542
2005	-28.1786687760916
2006	-26.8458072861186
2007	-26.4660390850708
2008	-27.3019619867581
2009	-31.8180630792239
2010	-28.8634627026785
2011	-28.3096014128562
2012	-30.3591888780001