Year	% change from 1990
1991	-3.66596957835093
1992	-3.84371716882843
1993	-7.89795103699333
1994	-20.8246693795517
1995	-18.2510034298334
1996	-13.3564901702603
1997	-18.9602063858056
1998	-18.8650766697847
1999	-19.6374346355578
2000	-17.8307644337994
2001	-16.8683456366442
2002	-16.3871362380666
2003	-15.1991070914337
2004	-14.0079003342449
2005	-12.3553442444536
2006	-10.0801750863416
2007	-7.58436059524589
2008	-6.49444017453025
2009	-4.24489050152624
2010	-3.42864178994802
2011	-1.87355798784703
2012	-0.318513905877982