Quarter	Percent
2005-01-01	54.7548011894938
2005-04-01	54.1246565020183
2005-07-01	53.8518396926027
2005-10-01	55.0474295268135
2006-01-01	55.5292394561625
2006-04-01	55.0557175154973
2006-07-01	54.9380145345229
2006-10-01	56.4806167699938
2007-01-01	56.6990085458215
2007-04-01	56.0451070420169
2007-07-01	55.5083301444061
2007-10-01	57.0687342422389
2008-01-01	57.5955461278389
2008-04-01	56.8673796984344
2008-07-01	56.7997922794811
2008-10-01	57.7953025825656
2009-01-01	56.5857076132648
2009-04-01	55.4013316252991
2009-07-01	55.4221339058507
2009-10-01	56.8489314220586
2010-01-01	58.1213507308453
2010-04-01	58.6290194174160
2010-07-01	59.8048350310096
2010-10-01	60.7282342657343
2011-01-01	60.9802904790333
2011-04-01	61.2319209327046
2011-07-01	61.1462502733796
2011-10-01	61.8444047600453
2012-01-01	61.9753468979348
2012-04-01	61.5346986408477
2012-07-01	61.6363947904999
2012-10-01	62.2064994648550
2013-01-01	62.4377129863433
2013-04-01	62.0824621986935
2013-07-01	61.9617183881834
2013-10-01	62.8210677140687
2014-01-01	62.4093952360676
2014-04-01	62.0119158252311
2014-07-01	61.7899962119250
2014-10-01	62.6492121150258
2015-01-01	62.3908677914882
2015-04-01	62.0937731054954
2015-07-01	62.3207566833018
2015-10-01	62.9591097834772
2016-01-01	62.1695254740402
2016-04-01	61.8870403028410
2016-07-01	62.0718054001665
2016-10-01	62.8276503336115
2017-01-01	62.4659365976872
2017-04-01	62.2944501964475
2017-07-01	62.6316613185112
2017-10-01	63.3240550161192
2018-01-01	62.8933059809127
2018-04-01	62.6028966214616
2018-07-01	62.0590943648257