Year	% change from 1990
1991	-8.0168834676988
1992	-30.7710430346031
1993	-28.9239179438438
1994	-31.4198386798439
1995	-32.0757725113066
1996	-37.1753851498967
1997	-43.5834580415474
1998	-43.6520101272789
1999	-31.1786285472927
2000	-22.2492251986992
2001	-17.7243147122186
2002	-12.9080726557039
2003	-1.59179585499648
2004	-5.3671414593105
2005	-2.65113218921891
2006	-0.373219351393983
2007	6.5831820318933
2008	12.4638880561682
2009	-1.61772416853889
2010	7.43595789752332
2011	8.99629246768696
2012	13.3357443768055