Year % change from 1990 1991 -16.6748707851341 1992 29.4525023975829 1993 -26.4241642407937 1994 -12.51241226544 1995 -9.13203255620528 1996 -20.7477912532781 1997 -23.2384767498112 1998 4.79516579391821 1999 -5.27043886375789 2000 10.0791838882429 2001 1.95880400926782 2002 -8.15857146494437 2003 0.32080932214178 2004 0.0390402878796658 2005 16.6922691742979 2006 -33.3157934938512 2007 -30.6302460386838 2008 -27.7118996494861 2009 -21.7626689977679 2010 -17.0621334668624 2011 -16.2327548015311 2012 -15.4033761361997