Year	Percent
2003-01-01	2.86560
2004-01-01	2.80705
2005-01-01	2.57032
2006-01-01	2.48855
2007-01-01	2.37458
2008-01-01	3.59116
2009-01-01	7.61460
2010-01-01	7.51580
2011-01-01	8.40519
2012-01-01	10.67770
2013-01-01	10.45240
2014-01-01	13.98610
2015-01-01	13.57910
2016-01-01	13.63880