Year	Percent
2004-01-01	1.14
2005-01-01	1.14
2006-01-01	1.31
2007-01-01	1.38
2008-01-01	1.44
2009-01-01	1.42
2010-01-01	1.46
2011-01-01	1.49
2012-01-01	1.55
2013-01-01	1.65
2014-01-01	1.75
2015-01-01	1.93
2016-01-01	2.02