Year	Percent
2005-01-01	41.3263
2006-01-01	37.5725
2007-01-01	37.5555
2008-01-01	36.2981
2009-01-01	37.4452
2010-01-01	35.7152
2011-01-01	33.7047
2012-01-01	36.8731
2013-01-01	36.6563
2014-01-01	32.7696
2015-01-01	35.6093
2016-01-01	36.9395
2017-01-01	38.7817