Quarter	Percent, Seasonally Adjusted
1998-01-01	60.6033254704564
1998-04-01	60.6118621049171
1998-07-01	60.2460879047008
1998-10-01	60.5871303206144
1999-01-01	60.5285797045403
1999-04-01	60.6835968733594
1999-07-01	60.6529879944208
1999-10-01	60.7217309150958
2000-01-01	60.9950182315504
2000-04-01	60.8371187286524
2000-07-01	61.2909235812442
2000-10-01	61.3049050941709
2001-01-01	61.5446943081053
2001-04-01	61.4434755347582
2001-07-01	61.5511937056645
2001-10-01	61.7242704743463
2002-01-01	61.7963492182759
2002-04-01	62.0332426260991
2002-07-01	62.2149012060512
2002-10-01	61.9529888212104
2003-01-01	62.1130172090797
2003-04-01	62.0129271955460
2003-07-01	61.9056449525976
2003-10-01	61.8063433019274
2004-01-01	61.5188577992569
2004-04-01	61.5510116121836
2004-07-01	61.6221680399834
2004-10-01	61.6971560435485
2005-01-01	61.6735814988676
2005-04-01	61.8265205799121
2005-07-01	61.9381414847218
2005-10-01	62.0187323596770
2006-01-01	61.9370447583572
2006-04-01	62.1389152473339
2006-07-01	62.1773935809141
2006-10-01	62.0425662561420
2007-01-01	62.2163274815820
2007-04-01	62.0437523485274
2007-07-01	62.4226191641298
2007-10-01	62.1929750110499
2008-01-01	62.1011735199113
2008-04-01	62.2301638308715
2008-07-01	62.0295692241788
2008-10-01	61.7865099612451
2009-01-01	61.6215722672279
2009-04-01	61.4124009518470
2009-07-01	61.1091866372302
2009-10-01	61.2873987074500
2010-01-01	61.5777037502733
2010-04-01	61.2580239841532
2010-07-01	61.0961748712686
2010-10-01	60.9948574069234
2011-01-01	60.7730952559934
2011-04-01	60.8263662160888
2011-07-01	60.4494558665531
2011-10-01	60.0012825226741
2012-01-01	60.1323346832135
2012-04-01	60.3873071159041
2012-07-01	60.4209647046114
2012-10-01	59.6899795863649
2013-01-01	59.2510552673638
2013-04-01	59.3401130898228
2013-07-01	59.2907815120949
2013-10-01	59.3133608448941
2014-01-01	58.7381840515569
2014-04-01	59.0039756722034
2014-07-01	59.0665310501992
2014-10-01	58.4868743621596
2015-01-01	58.5930357562035
2015-04-01	58.6456840909402
2015-07-01	58.5021435845083
2015-10-01	58.6405547260919
2016-01-01	58.2322913054312
2016-04-01	58.2621372055113
2016-07-01	58.7405554146347
2016-10-01	58.5852470382146
2017-01-01	58.6046231620475
2017-04-01	58.9779044853902
2017-07-01	59.1791232322788
2017-10-01	59.0608041085933
2018-01-01	59.0227532785794
2018-04-01	59.0321667286974