Quarter	Percent, Seasonally Adjusted
1999-01-01	60.6313820083798
1999-04-01	60.4213935274928
1999-07-01	60.7463364712707
1999-10-01	61.0046036582640
2000-01-01	61.6298848599414
2000-04-01	62.2236199798736
2000-07-01	62.0457536883878
2000-10-01	61.3691327426386
2001-01-01	61.4893285714627
2001-04-01	61.2169315450747
2001-07-01	61.7793521945936
2001-10-01	60.5309357026701
2002-01-01	60.9717041577324
2002-04-01	60.7199474989230
2002-07-01	60.9414289037283
2002-10-01	60.5164225339689
2003-01-01	59.3424726294173
2003-04-01	59.9597447040787
2003-07-01	59.9665170158388
2003-10-01	60.4417590295179
2004-01-01	60.5149904095973
2004-04-01	60.7274369971323
2004-07-01	60.3408479219486
2004-10-01	60.3621729058347
2005-01-01	61.1089761546683
2005-04-01	60.6200155486312
2005-07-01	61.3392316353543
2005-10-01	60.9115724197079
2006-01-01	60.2696918990540
2006-04-01	60.2589908558239
2006-07-01	60.7106500104253
2006-10-01	62.0436513856024
2007-01-01	62.1087980192659
2007-04-01	61.4772973200747
2007-07-01	61.5816683916162
2007-10-01	61.6958250294823
2008-01-01	61.9660762866679
2008-04-01	61.5452748960172
2008-07-01	61.6195902995880
2008-10-01	61.6287198016762
2009-01-01	60.9710383108183
2009-04-01	60.1595367383694
2009-07-01	60.2727957868198
2009-10-01	60.4875980477539
2010-01-01	60.4600592318304
2010-04-01	60.7320827614136
2010-07-01	60.6462651082046
2010-10-01	60.8596377804290
2011-01-01	60.0000121458670
2011-04-01	60.9561909392064
2011-07-01	59.7115731614477
2011-10-01	60.5248286963545
2012-01-01	60.3202192467232
2012-04-01	60.4051375725861
2012-07-01	59.9383334564451
2012-10-01	59.2180396446752
2013-01-01	59.2775709140357
2013-04-01	60.1210345483037
2013-07-01	59.1397199173473
2013-10-01	58.9777203975937
2014-01-01	59.0189622832473
2014-04-01	58.6839758747814
2014-07-01	58.5825034373821
2014-10-01	58.9537086264131
2015-01-01	58.9035626881468
2015-04-01	58.1005129638382
2015-07-01	58.7213502265894
2015-10-01	57.9050704978458
2016-01-01	58.3609772403412
2016-04-01	59.0678595380330
2016-07-01	59.0156971636996
2016-10-01	59.3856992567075
2017-01-01	59.4423705694620
2017-04-01	59.4928688744113
2017-07-01	59.7506543992991
2017-10-01	60.3696866078096
2018-01-01	60.1677203407033
2018-04-01	59.9807006591291