Year	% change from 1990
1991	0.328262568103987
1992	2.62190549603831
1993	7.27919622865114
1994	11.9805349735974
1995	12.4275698606719
1996	-29.4985343548277
1997	225.011405288908
1998	-44.7202689026277
1999	-50.8122663226727
2000	-53.7519467648308
2001	-56.2414460333192
2002	-54.8696650777919
2003	-57.6496714752413
2004	-57.6037881290607
2005	-56.2820855685078
2006	-51.2375393941301
2007	-51.560558151242
2008	-50.2302033025522
2009	-48.2129092139003
2010	-46.1956151252484
2011	-45.6575712765009
2012	-45.1195274277534