Year	Percent
2000-01-01	4.726000000000000
2001-01-01	5.127000000000001
2002-01-01	4.854000000000000
2003-01-01	4.735000000000000
2004-01-01	4.900000000000000
2005-01-01	4.800000000000000
2006-01-01	4.564000000000000
2007-01-01	3.034000000000000
2008-01-01	3.090000000000000
2009-01-01	2.940000000000000
2010-01-01	2.740000000000000
2011-01-01	2.790000000000000
2012-01-01	2.800000000000000
2013-01-01	2.770000000000000
2014-01-01	3.100000000000000
2015-01-01	3.150000000000000
2016-01-01	3.090000000000000