Year % change from 1990 1991 -0.906499539315708 1992 -1.47516124078781 1993 -0.317522778463797 1994 2.79468033374055 1995 10.0495559479922 1996 18.9043624590485 1997 25.4718852375082 1998 -15.8148738226862 1999 -17.6200348075361 2000 539.306920556909 2001 53.5140253890223 2002 21.6485910626532 2003 32.1271882678129 2004 68.1843135749375 2005 103.486800010234 2006 123.866579647824 2007 980.378851863208 2008 287.151604729724 2009 180.246612023951 2010 197.527641277638 2011 197.527641277637 2012 197.527641277637