Year	Percent
2002-01-01	2.03
2003-01-01	2.16
2004-01-01	2.22
2005-01-01	2.02
2006-01-01	2.06
2007-01-01	2.05
2008-01-01	1.60
2009-01-01	1.83
2010-01-01	1.89
2011-01-01	1.79
2012-01-01	1.74
2013-01-01	1.68
2014-01-01	1.80
2015-01-01	1.73
2016-01-01	1.85