Quarter	Percent
2005-01-01	52.4339910403716
2005-04-01	52.6454220655049
2005-07-01	53.2371811339459
2005-10-01	54.5949160389776
2006-01-01	54.4181280954083
2006-04-01	54.9704075424721
2006-07-01	55.1823497229336
2006-10-01	55.4387350045596
2007-01-01	54.1984749221351
2007-04-01	54.6803451101758
2007-07-01	53.9529826810175
2007-10-01	55.2340857278507
2008-01-01	54.4789003378591
2008-04-01	54.7996294912040
2008-07-01	53.1567928780316
2008-10-01	52.7985110354755
2009-01-01	52.8222559058478
2009-04-01	52.5766600838070
2009-07-01	53.9788109555017
2009-10-01	54.4808262173294
2010-01-01	53.4798949401828
2010-04-01	54.4179138054880
2010-07-01	53.4093881458819
2010-10-01	52.5023229678048
2011-01-01	53.0901561343750
2011-04-01	53.3689990299614
2011-07-01	54.3356044465803
2011-10-01	54.5235729381925
2012-01-01	54.5088680153782
2012-04-01	55.5470234481955
2012-07-01	55.5973225404165
2012-10-01	54.3294973411339
2013-01-01	54.0723598993702
2013-04-01	55.2447728763110
2013-07-01	55.0335386699739
2013-10-01	55.6068427263185
2014-01-01	54.9074149817534
2014-04-01	54.9711688900926
2014-07-01	54.8526078063793
2014-10-01	55.0796082105178
2015-01-01	54.6899304508646
2015-04-01	54.3676234164952
2015-07-01	55.2775875554659
2015-10-01	54.5282098048391
2016-01-01	53.7477052773164
2016-04-01	55.0215446349188
2016-07-01	55.2297781856580
2016-10-01	55.7851026953100
2017-01-01	55.0866041473477
2017-04-01	55.3548874408810
2017-07-01	54.9017491295196
2017-10-01	54.3574128953269
2018-01-01	55.1190302865268
2018-04-01	55.0625779255309