Year	% change from 1990
1991	-2.59641819417791
1992	-11.4829542378285
1993	-11.5443153721673
1994	-11.982867008765
1995	-11.8974426844895
1996	-10.4452291718051
1997	-13.8501705478587
1998	-15.7018330134934
1999	-16.883335639389
2000	-10.3856727767116
2001	-12.7240132588177
2002	-13.9680801785489
2003	-13.1336890674912
2004	-11.2020164953167
2005	-14.7170469653309
2006	-15.2741098123673
2007	-16.9188288445458
2008	-17.2105950225292
2009	-18.7807181659037
2010	-17.6840382845352
2011	-16.8608786673805
2012	-16.0377190502259