Year	% change from 1990
1991	-13.8657943761796
1992	23.6960314873423
1993	-11.6435029695197
1994	-8.56614689950545
1995	-2.58604376567135
1996	-15.9473284474787
1997	-17.7349826242245
1998	39.6828029504025
1999	18.6170148025584
2000	13.0772870793217
2001	5.72470282432911
2002	10.5308887621686
2003	20.9989335404415
2004	22.0111066903848
2005	27.4429868150252
2006	20.9079906488665
2007	41.2293563244832
2008	25.2549919641185
2009	17.6046675705764
2010	26.5571570427533
2011	36.0749513831679
2012	36.5002191860766