Year % change from 1990 1991 -22.6439417844856 1992 -8.53914770147232 1993 -15.5216999792197 1994 -16.115861495717 1995 -5.24278270774489 1996 -6.89596785986407 1997 -2.10419376438263 1998 -4.94839568694153 1999 6.07707167650522 2000 11.0716457196512 2001 6.50191255358614 2002 6.73742217022881 2003 21.1088962603228 2004 27.2613925852953 2005 10.789188107534 2006 82.1651491945725 2007 62.2388036727186 2008 85.8286321201253 2009 69.7597186198829 2010 80.882930170629 2011 82.6917594723353 2012 84.5005887740416