Quarter	Percent
2005-01-01	38.9772032491921
2005-04-01	38.4490526760174
2005-07-01	37.9529671375722
2005-10-01	37.4635631933870
2006-01-01	41.0768347241621
2006-04-01	39.0832755231819
2006-07-01	38.0715637126956
2006-10-01	37.4079003334111
2007-01-01	39.8452584824688
2007-04-01	37.8943403978498
2007-07-01	37.9350033852404
2007-10-01	40.2969232836222
2008-01-01	42.9923248164269
2008-04-01	40.5887030454610
2008-07-01	40.6862348723754
2008-10-01	41.6531658789348
2009-01-01	41.4419648752146
2009-04-01	40.0170208203499
2009-07-01	38.7989649208508
2009-10-01	38.5224343286017
2010-01-01	44.6671549165478
2010-04-01	42.5393568287120
2010-07-01	44.5456026589332
2010-10-01	43.6034038668449
2011-01-01	46.9324915759712
2011-04-01	43.0265510163544
2011-07-01	43.9865746783517
2011-10-01	43.0617945842650
2012-01-01	44.7628993831794
2012-04-01	42.1441680224444
2012-07-01	40.4063216312515
2012-10-01	40.9787092266338
2013-01-01	43.5690440721195
2013-04-01	40.3543868239483
2013-07-01	39.3376808148285
2013-10-01	40.9538884451397
2014-01-01	43.5203215833470
2014-04-01	40.0458117981516
2014-07-01	39.3393788678144
2014-10-01	40.3907552318987
2015-01-01	43.5432211627244
2015-04-01	40.4442387604901
2015-07-01	39.8218699547136
2015-10-01	39.4182319585330
2016-01-01	41.7469857840854
2016-04-01	38.7208013681185
2016-07-01	38.4618785101242
2016-10-01	37.8739287812442
2017-01-01	41.0064291230105
2017-04-01	36.8205953203461
2017-07-01	36.6217526510623
2017-10-01	36.4286583718711
2018-01-01	38.0675280663126
2018-04-01	37.1341344781534
2018-07-01	35.5156386869955