Year	% change from 1990
1991	-13.2599093762819
1992	17.4441123580845
1993	-15.0419308536204
1994	-8.2434031076657
1995	-4.4913008408357
1996	-10.8050829255432
1997	-12.1240400897158
1998	63.4732613910374
1999	38.9595564338849
2000	41.6226415063437
2001	32.0555303447436
2002	32.9757391135936
2003	47.3442481003693
2004	36.2332450434035
2005	55.7577920748851
2006	47.3296518548863
2007	60.4693582393649
2008	40.0474471766834
2009	26.0488229237652
2010	34.2539876333499
2011	34.7159141500457
2012	35.515962529043