Year	Percent
2005-01-01	4.69765728739676
2006-01-01	4.66973093584892
2007-01-01	4.78670642735659
2008-01-01	5.15372038693825
2009-01-01	5.44623742662928
2010-01-01	5.86162254861024
2011-01-01	5.80026670186899
2012-01-01	5.54303999716667
2013-01-01	5.71196323841708
2014-01-01	5.78110482413226
2015-01-01	5.76771816926550
2016-01-01	5.78146762916528
2017-01-01	5.75986449917161