Year Percent 1996-01-01 9.26503 1997-01-01 9.26503 1998-01-01 9.26503 1999-01-01 2.97007 2000-01-01 2.97007 2001-01-01 2.97007 2002-01-01 2.97007 2003-01-01 2.97007 2004-01-01 2.97007 2005-01-01 2.97007 2006-01-01 2.97007 2007-01-01 2.97007 2008-01-01 2.97007 2009-01-01 2.97007 2010-01-01 2.97007 2011-01-01 2.97007 2012-01-01 2.97007 2013-01-01 2.86543 2014-01-01 15.90590 2015-01-01 6.40000 2016-01-01 8.00183