Year Number 2004-01-01 78.77237852 2005-01-01 92.16152019 2006-01-01 93.55932203 2007-01-01 77.76162791 2008-01-01 78.70485679 2009-01-01 62.77602524 2010-01-01 88.27694729 2011-01-01 88.91142664 2012-01-01 6.53861465 2013-01-01 17.81114353 2014-01-01 66.78718533