Year	Percent
2003-01-01	1.44927536231884
2004-01-01	1.41843971631206
2005-01-01	1.97368421052632
2006-01-01	1.82926829268292
2007-01-01	2.27963380983329
2008-01-01	2.93540142013500
2009-01-01	2.93399473777327
2010-01-01	2.32154121664627
2011-01-01	2.84373939631115
2012-01-01	2.17333495458727
2013-01-01	4.62767208152691
2014-01-01	4.34339842234579
2015-01-01	4.68658559303055
2016-01-01	4.96023734372186
2017-01-01	3.15758976280690