Year	% change from 1990
1991	40.2786409793202
1992	57.3442624472266
1993	15.3224777206933
1994	42.6728559285986
1995	13.4436327907472
1996	-0.983011601146311
1997	176.540899892617
1998	-1.24222747177279
1999	-25.1550660383484
2000	-47.4936864811307
2001	-34.5147091067585
2002	12.8097666041652
2003	-33.5518142993993
2004	-5.74258641422865
2005	-31.7906258045611
2006	32.5196502362718
2007	-25.1196185671643
2008	-50.0336394227876
2009	-17.3843795378317
2010	-50.7702493532879
2011	-32.7758515564109
2012	-31.6621883298558