Year	Percent
2000-01-01	0.30074400000000000
2001-01-01	0.27132700000000000
2002-01-01	0.22101700000000002
2003-01-01	0.19797200000000000
2004-01-01	0.19564700000000002
2005-01-01	0.21308300000000000
2006-01-01	0.20678600000000003
2007-01-01	0.24570400000000000
2008-01-01	0.24901199999999998
2009-01-01	0.25468300000000000
2010-01-01	0.28870100000000004
2011-01-01	0.31811700000000000
2012-01-01	0.31376500000000000
2013-01-01	0.17071800000000000
2014-01-01	0.20802800000000002
2015-01-01	0.25772900000000000