Year	Percent
2006-01-01	34.5618
2007-01-01	31.5234
2008-01-01	30.7446
2009-01-01	30.8481
2010-01-01	30.1497
2011-01-01	28.8478
2012-01-01	26.6411
2013-01-01	33.6150
2014-01-01	37.0279
2015-01-01	34.7166
2016-01-01	34.6305