Year Number 2005-01-01 0.048388424 2006-01-01 0.537709551 2007-01-01 0.476034021 2008-01-01 15.883919810 2009-01-01 16.403568100 2010-01-01 10.338987250 2011-01-01 6.910588028 2012-01-01 12.958490080 2013-01-01 26.934798740 2014-01-01 24.655506330