Year	% change from 1990
1991	-4.6262157763637
1992	3.00569198190772
1993	9.23423939624248
1994	-15.2587117029284
1995	-8.81604802933068
1996	-6.17201220470274
1997	-6.82474013595675
1998	50.5660972121394
1999	-13.8503491122475
2000	-44.6083328347346
2001	-47.7258198914121
2002	-17.0046361827278
2003	-15.9711503727015
2004	1.58119940235051
2005	34.5823838343983
2006	-12.4799222461941
2007	72.6177905077109
2008	-20.0925340694818
2009	-46.8457659588103
2010	74.711405992896
2011	74.711405992896
2012	74.711405992896