Year	Percent
2003-01-01	20.3842
2004-01-01	27.3429
2005-01-01	49.3132
2006-01-01	31.9904
2007-01-01	48.9326
2008-01-01	39.0969
2009-01-01	48.1978
2010-01-01	46.3964
2011-01-01	31.9915
2012-01-01	26.0044
2013-01-01	37.8225
2014-01-01	50.7594
2015-01-01	58.7839
2016-01-01	59.3759
2017-01-01	60.1647