Year % change from 1990 1991 -0.555500000000742 1992 -1.11100000000049 1993 -1.66675000000099 1994 -2.22224999999975 1995 -2.77775000000073 1996 -3.33325000000123 1997 -3.88899999999923 1998 -100.000000000001 1999 -99.9999999999997 2000 -99.9999999999985 2001 -100.000000000001 2002 -100.000000000001 2003 -99.9999999999995 2004 -99.999999999999 2005 -100.000000000001 2006 -99.9999999999997 2007 -99.9999999999993 2008 -100 2009 -100 2010 -100.000000000001 2011 -100.000000000024 2012 -99.9999999999992