Year	% change from 1990
1991	-9.98024505124847
1992	-31.1099549888801
1993	-40.9490729285444
1994	-79.2152581936641
1995	-79.001327515784
1996	-77.3211820199973
1997	-61.7499220943862
1998	-52.6054650852477
1999	-50.925977345489
2000	-28.1803591320708
2001	-42.2679203820966
2002	-45.360593116159
2003	-40.4641847637653
2004	-36.1375198932324
2005	-33.6485212730979
2006	-27.2884745267729
2007	-21.2190659024392
2008	-22.6127410866384
2009	-21.8614686002024
2010	-18.1977203645054
2011	-15.6863925331122
2012	-13.4431376717436