Year	Percent
2001-01-01	2.5642000000000000
2002-01-01	3.0317200000000000
2003-01-01	5.7991500000000000
2004-01-01	5.5825200000000000
2005-01-01	5.0990800000000010
2006-01-01	7.9488699999999990
2007-01-01	8.8102900000000000
2008-01-01	2.6836900000000004
2009-01-01	9.2110500000000000
2010-01-01	11.7663000000000000
2011-01-01	9.9950700000000000
2012-01-01	10.9940000000000020
2013-01-01	8.5139199999999990
2014-01-01	11.4661000000000000
2015-01-01	9.8471100000000000
2016-01-01	10.2293000000000000