Year	Percent
2000-01-01	2.41
2001-01-01	1.29
2002-01-01	0.93
2003-01-01	1.36
2004-01-01	1.42
2005-01-01	1.81
2006-01-01	2.63
2007-01-01	2.34
2008-01-01	1.06
2009-01-01	1.33
2010-01-01	1.21
2011-01-01	1.28
2012-01-01	1.58
2013-01-01	1.82
2014-01-01	2.76
2015-01-01	2.59
2016-01-01	3.70