Year	% change from 1990
1991	-15.4719084611892
1992	18.7193716449839
1993	-16.69261952423
1994	-9.05912102334658
1995	-5.56294633992589
1996	-13.3959981604994
1997	-15.4123413042207
1998	57.6625684335291
1999	31.4402149584024
2000	36.2130005010997
2001	27.1743992655323
2002	26.9636471961011
2003	43.0018337183622
2004	30.6726099946946
2005	49.953341701767
2006	41.6552114018366
2007	55.6641062884242
2008	46.2728695248208
2009	33.6868364795157
2010	40.6078476294221
2011	41.1792158692194
2012	41.5161452588578