Year % change from 1990 1991 0.033730352689787 1992 2.50183666577204 1993 -0.313565821342698 1994 -1.93787405880894 1995 1.85507808581817 1996 4.6871908632472 1997 4.6818447970302 1998 -13.8223188116854 1999 -47.0522225042752 2000 -10.8303462497027 2001 -52.6188298892756 2002 -13.015181690962 2003 -32.4881167612563 2004 -56.1778886218861 2005 -52.3294479968688 2006 -34.8920065335373 2007 -4.54679055297896 2008 -19.8627602951056 2009 -13.4481426059127 2010 -57.1687955056667