Year	% change from 1990
1991	-0.289585547290117
1992	-2.1269261424017
1993	0.0941153028692909
1994	1.25896652497344
1995	-2.59066153028692
1996	0.659670563230597
1997	-1.88815090329437
1998	-48.1070669500532
1999	-51.8663655685441
2000	-50.431721572795
2001	-72.8015409139213
2002	-79.210945802338
2003	-75.7173219978745
2004	-77.557120085016
2005	-75.9697130712008
2006	-73.5587141339002
2007	-72.0832727550478
2008	-70.1115834218915
2009	-68.9824654622742
2010	-67.3751328374071
2011	-67.375132837404
2012	-67.3751328374078