Quarter	Percent
2005-01-01	22.9925758058615
2005-04-01	23.3405021859768
2005-07-01	23.4148450598963
2005-10-01	23.6064019618789
2006-01-01	22.2656961226016
2006-04-01	22.4481944767705
2006-07-01	22.7451125318748
2006-10-01	23.0685453679123
2007-01-01	22.2022850783028
2007-04-01	22.7327590634607
2007-07-01	23.1638170952415
2007-10-01	22.3516983881249
2008-01-01	21.4755490706360
2008-04-01	21.9555982282769
2008-07-01	22.2269156341160
2008-10-01	22.0772504657876
2009-01-01	22.1071546536843
2009-04-01	22.4471179128344
2009-07-01	22.8620229516947
2009-10-01	23.2535312382537
2010-01-01	22.4463047896322
2010-04-01	22.4720667679693
2010-07-01	21.7854921099438
2010-10-01	21.9245739532927
2011-01-01	21.0278071839592
2011-04-01	21.5984404096021
2011-07-01	21.4049796082336
2011-10-01	21.7552501581952
2012-01-01	21.4284966261620
2012-04-01	22.0295582961223
2012-07-01	22.4955511783145
2012-10-01	21.9237028901469
2013-01-01	21.3688908780559
2013-04-01	22.1098619380576
2013-07-01	22.3586240762007
2013-10-01	21.8738957372203
2014-01-01	21.7734635999258
2014-04-01	22.2388327150091
2014-07-01	23.0295106396258
2014-10-01	22.4609644492182
2015-01-01	21.9383903793452
2015-04-01	22.3220141969449
2015-07-01	22.4757936842389
2015-10-01	22.4670650887314
2016-01-01	22.3657833058546
2016-04-01	22.7699806399106
2016-07-01	22.6626140379567
2016-10-01	22.7947860797094
2017-01-01	21.9937056966753
2017-04-01	22.4605615868696
2017-07-01	22.6173389326280
2017-10-01	22.4150967776885
2018-01-01	22.5306977959764
2018-04-01	22.4078173318089
2018-07-01	23.0323919673428