Year	Percent
2005-01-01	56.9048
2006-01-01	46.0084
2007-01-01	47.7798
2008-01-01	40.6452
2009-01-01	29.7381
2010-01-01	21.8796
2011-01-01	23.8160
2012-01-01	16.7464
2013-01-01	19.7368
2014-01-01	24.6225
2015-01-01	29.0829
2016-01-01	35.7637