Year	% change from 1990
1991	-7.50510764646606E-12
1992	-5.82867087928207E-12
1993	-7.50510764646606E-12
1994	-3.34177130412172E-12
1995	-1.16684439888104E-11
1996	-3.34177130412172E-12
1997	-7.50510764646606E-12
1998	-99.9999999999962
1999	-100
2000	-99.9999999999962
2001	-100.000000000004
2002	-100
2003	-100.000000000004
2004	-99.9999999999962
2005	-100.000000000004
2006	-100.000000000008
2007	-91.6666666666673
2008	-100
2009	-100.000000000023
2010	-99.9999999999849
2011	-99.9999999999849
2012	-99.9999999999735