Year Percent 2000-01-01 0.020750 2001-01-01 0.069864 2002-01-01 0.147835 2003-01-01 0.127830 2004-01-01 0.285788 2005-01-01 0.273117 2006-01-01 0.410454 2007-01-01 0.407956 2008-01-01 0.323660 2009-01-01 0.142784 2010-01-01 0.136723 2011-01-01 0.182087 2012-01-01 0.182087 2013-01-01 0.081450 2014-01-01 0.102109