Year Percent 1998 85.52451 1999 90.42996 2000 103.20906 2001 114.61428 2002 106.21495 2003 109.34412 2004 99.34811 2005 100.62814 2006 94.94084 2007 94.97942 2008 94.84144 2009 99.48007 2010 98.93096 2011 100.54945 2012 94.58333