Quarter	Percent, Seasonally Adjusted
1998-01-01	60.9299058062162
1998-04-01	60.7319747774336
1998-07-01	60.7026295468837
1998-10-01	60.8624312797359
1999-01-01	60.8522043167293
1999-04-01	60.7605213038638
1999-07-01	60.6785282610025
1999-10-01	60.6893687841011
2000-01-01	60.5084192488578
2000-04-01	60.2120097989192
2000-07-01	60.0217933027182
2000-10-01	59.8530081633913
2001-01-01	60.0502733996245
2001-04-01	59.7718864876304
2001-07-01	59.7127723098174
2001-10-01	59.5438224955590
2002-01-01	59.4619486907909
2002-04-01	59.5939520158393
2002-07-01	59.6437195750974
2002-10-01	59.6821570791905
2003-01-01	59.4710911427302
2003-04-01	59.3750120004618
2003-07-01	59.1415926583650
2003-10-01	59.0641556776316
2004-01-01	59.1147515761827
2004-04-01	59.1086423649721
2004-07-01	59.0352500241321
2004-10-01	59.1308292035629
2005-01-01	59.1848195102270
2005-04-01	59.3139768368162
2005-07-01	59.5059874883041
2005-10-01	59.5028615184530
2006-01-01	59.5245932440492
2006-04-01	59.3600730060546
2006-07-01	59.1844335294523
2006-10-01	59.0004948042584
2007-01-01	58.8926929079737
2007-04-01	58.8268125421920
2007-07-01	58.7248800379547
2007-10-01	58.6509816231069
2008-01-01	58.5557327188273
2008-04-01	58.5909213504799
2008-07-01	58.3986653848617
2008-10-01	58.4650632762195
2009-01-01	58.5691188610465
2009-04-01	58.7064381212262
2009-07-01	58.7488497935874
2009-10-01	58.6855406119494
2010-01-01	58.4801610837031
2010-04-01	58.3896314730564
2010-07-01	58.4754025979608
2010-10-01	58.4214851618575
2011-01-01	58.2898229215337
2011-04-01	58.3891484973399
2011-07-01	58.2491647028925
2011-10-01	58.1213838002960
2012-01-01	58.2671399283110
2012-04-01	58.5074066198508
2012-07-01	58.8007438879850
2012-10-01	58.9857110366260
2013-01-01	59.0954082785761
2013-04-01	59.3717258047152
2013-07-01	59.3097587008821
2013-10-01	59.3239346901638
2014-01-01	59.2929856213326
2014-04-01	59.1854364333288
2014-07-01	59.2703041731606
2014-10-01	59.4889691595216
2015-01-01	59.5012269296694
2015-04-01	59.4193032964541
2015-07-01	59.3839297705065
2015-10-01	59.3892159238407
2016-01-01	59.7186547802399
2016-04-01	59.8588200669751
2016-07-01	59.9505800797916
2016-10-01	60.1482314814047
2017-01-01	60.1016110278239
2017-04-01	60.0846929388742
2017-07-01	60.4170216369784
2017-10-01	60.2705807321733
2018-01-01	60.4270603498170
2018-04-01	60.5575272485430