Year	Percent
1999-01-01	0.069970000000000000
2000-01-01	0.084471000000000000
2001-01-01	0.092272000000000000
2002-01-01	0.067147000000000000
2003-01-01	0.065637000000000000
2004-01-01	0.073029000000000000
2005-01-01	0.061900000000000000
2006-01-01	0.050322000000000006
2007-01-01	0.051241999999999996
2008-01-01	0.048063999999999996
2009-01-01	0.049585000000000004
2010-01-01	0.043157999999999995
2011-01-01	0.039506000000000000
2012-01-01	0.039126000000000000
2013-01-01	0.044222000000000004
2014-01-01	0.044155000000000000
2015-01-01	0.050306000000000003
2016-01-01	0.061592999999999995