Year	% change from 1990
1991	-19.714653087499
1992	10.1985344113691
1993	-33.7429474103599
1994	-20.3708917173334
1995	-10.6109472984075
1996	-24.781816295989
1997	-26.6053233366425
1998	-34.5712305379807
1999	-32.0778200891997
2000	-35.1135411367449
2001	-15.0179206158699
2002	-3.20809481709777
2003	-28.0936317194078
2004	-27.0722307009702
2005	-23.3149105780201
2006	-36.611398400727
2007	-35.1915785453103
2008	-36.1975037907412
2009	-31.4490756518346
2010	-28.2031145816355
2011	-27.4851457274519
2012	-26.7671768732682