Year	% change from 1990
1991	-10.6020995950303
1992	20.7910482728358
1993	-15.4888828562822
1994	-5.87931233242472
1995	2.52687712200037
1996	-8.96399897363048
1997	-11.2476711452573
1998	13.9928377257734
1999	-2.23570055297517
2000	8.30280875686569
2001	15.6722162515944
2002	10.863898196044
2003	21.2190741105727
2004	14.3658263576154
2005	24.9861477302731
2006	-6.11954229869585
2007	-6.98712203756662
2008	-5.69449144506136
2009	-0.62586228054845
2010	2.06054836394467
2011	3.08115384758412
2012	4.10175933122356