Year Percent 1994-01-01 0.00241900000000000000 1995-01-01 0.00286999999999999970 1996-01-01 0.00312199999999999980 1997-01-01 0.00281400000000000000 1998-01-01 0.00209800000000000000 1999-01-01 0.00128500000000000000 2000-01-01 0.00465100000000000000 2001-01-01 0.00835700000000000000 2002-01-01 0.01047500000000000000 2003-01-01 0.01189599999999999900 2004-01-01 0.02618899999999999700 2005-01-01 0.03809300000000000000 2006-01-01 0.02915600000000000000 2007-01-01 0.01148300000000000000 2008-01-01 0.00097300000000000000 2009-01-01 0.00229300000000000000 2010-01-01 0.00329200000000000020 2011-01-01 0.00198600000000000000 2012-01-01 0.00079700000000000000 2013-01-01 0.00073700000000000000 2014-01-01 0.00045000000000000000 2015-01-01 0.00021600000000000002 2016-01-01 0.00025800000000000000