Year	Percent
2003-01-01	8.0670600000000010
2004-01-01	5.3367800000000000
2005-01-01	3.0467400000000002
2006-01-01	3.2736800000000000
2007-01-01	3.7609900000000000
2008-01-01	3.6064300000000005
2009-01-01	3.8130900000000003
2010-01-01	4.2783900000000000
2011-01-01	5.1354400000000000
2012-01-01	5.1781800000000000
2013-01-01	5.2578500000000000
2014-01-01	5.1559099999999995
2015-01-01	2.9575400000000003
2016-01-01	4.4599900000000000