Year	% change from 1990
1991	-0.555499999999742
1992	-1.111
1993	-1.6667499999995
1994	-2.22225
1995	-2.77774999999976
1996	-3.33324999999925
1997	-3.88899999999975
1998	-100
1999	-99.9999999999997
2000	-99.9999999999992
2001	-100
2002	-100
2003	-100.000000000001
2004	-100
2005	-99.9999999999991
2006	-100
2007	-100
2008	-99.9999999999986
2009	-100
2010	-100.000000000002
2011	-99.9999999999988
2012	-100.000000000001