Quarter	Percent
2005-01-01	61.9927020937471
2005-04-01	61.8929309916570
2005-07-01	62.7322233023777
2005-10-01	62.7663522500221
2006-01-01	62.6943370164393
2006-04-01	62.9880797810274
2006-07-01	63.7809784870472
2006-10-01	63.7102099375419
2007-01-01	63.0197965033880
2007-04-01	63.1801058361688
2007-07-01	63.1815621849228
2007-10-01	64.1682668710706
2008-01-01	63.2349412381934
2008-04-01	63.5329164498578
2008-07-01	63.3191134832760
2008-10-01	62.7642302516488
2009-01-01	62.5051182977012
2009-04-01	62.7033974688241
2009-07-01	64.0351223224307
2009-10-01	63.9758735398620
2010-01-01	62.7311283682618
2010-04-01	63.7003600753953
2010-07-01	63.5722291923190
2010-10-01	62.5487880145266
2011-01-01	62.3754191828266
2011-04-01	63.2536233962758
2011-07-01	63.7127465069239
2011-10-01	64.3679855061385
2012-01-01	63.2707829411046
2012-04-01	64.5366708613945
2012-07-01	64.8797919307315
2012-10-01	64.0008591032724
2013-01-01	63.1710462273394
2013-04-01	64.3339927916324
2013-07-01	64.3301392019872
2013-10-01	64.6253033664155
2014-01-01	63.5297223782656
2014-04-01	63.6750705307358
2014-07-01	63.7949474000524
2014-10-01	63.3596072365238
2015-01-01	62.9423893971303
2015-04-01	63.4364689463792
2015-07-01	63.7430303240181
2015-10-01	64.3130506149947
2016-01-01	63.0964736292980
2016-04-01	63.5318534545451
2016-07-01	64.1652849847403
2016-10-01	63.6657000551082
2017-01-01	63.1827417961478
2017-04-01	63.3801202764113
2017-07-01	63.4462711201046
2017-10-01	63.5527597456501
2018-01-01	63.0442922522530
2018-04-01	63.8216231218837