Year % change from 1990 1991 -9.73515208841539 1992 -24.4127251003589 1993 -20.8271292604443 1994 -17.7148155523473 1995 -16.0373964164973 1996 -2.36126259860515 1997 9.33484795684227 1998 -1.17681268301073 1999 17.2960689183868 2000 23.9804577361206 2001 11.0386296881294 2002 62.9181809130283 2003 40.1911344741285 2004 150.179333535484 2005 119.559122363175 2006 71.0292047774001 2007 103.348954774006 2008 90.2905316419032 2009 156.393212253968 2010 120.230689681703 2011 120.230689681703 2012 120.230689681703