Quarter	Percent, Seasonally Adjusted
1999-01-01	61.5683913440214
1999-04-01	61.6597238154228
1999-07-01	60.9891928034545
1999-10-01	59.8159109333644
2000-01-01	60.0224100409206
2000-04-01	60.0617571450082
2000-07-01	60.4492685669328
2000-10-01	60.7079085236025
2001-01-01	62.4996026674747
2001-04-01	62.4900019684313
2001-07-01	62.2593767703904
2001-10-01	62.0394900363094
2002-01-01	61.4123193378968
2002-04-01	61.1180503333837
2002-07-01	60.9930290054100
2002-10-01	60.5994077837575
2003-01-01	60.6082893325814
2003-04-01	60.7063490623884
2003-07-01	60.2527147935739
2003-10-01	60.2216428347835
2004-01-01	60.0063730575224
2004-04-01	60.2875050207414
2004-07-01	60.0233372090490
2004-10-01	59.7131072554527
2005-01-01	58.1505124479673
2005-04-01	56.5611107564458
2005-07-01	56.4884297055536
2005-10-01	56.6105006930471
2006-01-01	55.8267255938270
2006-04-01	55.6804981103027
2006-07-01	56.6058194525338
2006-10-01	56.0575238893052
2007-01-01	56.9086722337380
2007-04-01	57.0056847483873
2007-07-01	55.8299325118289
2007-10-01	56.6881616981654
2008-01-01	56.8198106972461
2008-04-01	55.7834458419892
2008-07-01	56.2833512048322
2008-10-01	56.1609879460697
2009-01-01	56.7141904149663
2009-04-01	58.2941419463377
2009-07-01	58.4841020409678
2009-10-01	59.6230899218789
2010-01-01	59.3118562932241
2010-04-01	59.8058050487124
2010-07-01	59.8495333121752
2010-10-01	60.0876050326802
2011-01-01	60.3963231026964
2011-04-01	60.4575758895994
2011-07-01	60.6702544135552
2011-10-01	61.6517548775028
2012-01-01	61.5496191871492
2012-04-01	61.7394428912748
2012-07-01	62.8570918347621
2012-10-01	63.2885546108936
2013-01-01	63.1210227287700
2013-04-01	64.2945182490402
2013-07-01	64.3632376644647
2013-10-01	64.6628704475936
2014-01-01	65.2368739103192
2014-04-01	66.4701713939070
2014-07-01	66.7224105617724
2014-10-01	65.5513826629603
2015-01-01	66.6231615723426
2015-04-01	66.1473534801747
2015-07-01	66.4517833844375
2015-10-01	68.0392016146598
2016-01-01	68.2663444695469
2016-04-01	68.3845070647846
2016-07-01	68.6627902652346
2016-10-01	69.5456120477970
2017-01-01	68.6885858485106
2017-04-01	68.8670906339883
2017-07-01	68.5844511051432
2017-10-01	67.9298177376886
2018-01-01	69.3653239094490
2018-04-01	69.0852959482708
2018-07-01	69.4801941539311