Year	Percent
2005-01-01	3.8778000000000000
2006-01-01	3.3259300000000005
2007-01-01	2.5267100000000000
2008-01-01	2.0666100000000000
2009-01-01	2.3887400000000003
2010-01-01	2.4100099999999998
2011-01-01	4.1255300000000000
2012-01-01	8.7501199999999990
2013-01-01	13.2492000000000000
2014-01-01	12.6598000000000000
2015-01-01	15.0618000000000000
2016-01-01	13.7076000000000000