Year	% change from 1990
1991	-3.90488000742953
1992	-5.22963294783477
1993	-13.6392192425145
1994	-8.90889523799119
1995	-10.1030848989091
1996	-7.27166449061202
1997	-5.60220264076525
1998	-8.45711351357258
1999	-33.8038710100353
2000	-40.4544039158058
2001	-43.2508617722736
2002	-43.8162717901373
2003	-43.5720802172048
2004	-44.5390132912326
2005	-46.9063058239963
2006	-47.914210638449
2007	-48.5300978405161
2008	-49.9477200592178
2009	-53.4385669724069
2010	-53.2369313805291
2011	-54.396366586512
2012	-55.354166200617