Year	% change from 1990
1991	3.45501784027669
1992	-29.9698587710922
1993	-41.699305475857
1994	-44.428387733657
1995	-46.2324753783374
1996	-44.5008366039368
1997	-45.0240851919222
1998	-53.3275754710832
1999	-58.1703366086723
2000	-60.8845095469926
2001	-61.2680225512363
2002	-59.5842508735014
2003	-59.9052461812778
2004	-58.558769022224
2005	-56.6296620119801
2006	-55.6860493530382
2007	-52.5415019347475
2008	-50.8089467848161
2009	-54.9659933500541
2010	-50.7098843818009
2011	-46.0393010734519
2012	-45.8230462499255