Year	% change from 1990
1991	-5.44220926080229
1992	-15.2557235249772
1993	-13.3253977701067
1994	-10.7336428202992
1995	-9.32508034757766
1996	-8.2275919533389
1997	-7.6681347458636
1998	-12.6302424314566
1999	-13.9999206443677
2000	-10.9197317779629
2001	-12.4957346347657
2002	-10.3483712256477
2003	-4.66095306114351
2004	-7.94032456453597
2005	-11.0367813355553
2006	-8.21330793953102
2007	-6.79720668174424
2008	-10.9375867952228
2009	-22.9329841685514
2010	-25.5259294528429
2011	-27.2621546020982
2012	-28.9983797513536