Quarter	Percent, Seasonally Adjusted
1998-01-01	61.5229041000754
1998-04-01	61.1750737168519
1998-07-01	61.7496325502174
1998-10-01	61.1306620441600
1999-01-01	60.9318556109444
1999-04-01	60.6231784529951
1999-07-01	60.5704317916721
1999-10-01	60.2127922370882
2000-01-01	61.0950286696458
2000-04-01	62.0288148256927
2000-07-01	61.7291989267602
2000-10-01	62.2191946508839
2001-01-01	61.8484648496681
2001-04-01	61.4571990774675
2001-07-01	60.8628242269669
2001-10-01	59.9579940101754
2002-01-01	58.7599661236336
2002-04-01	58.1477476714451
2002-07-01	56.9183961341727
2002-10-01	56.4554469431623
2003-01-01	56.2731754422382
2003-04-01	55.8200552893769
2003-07-01	55.1584489035513
2003-10-01	55.8366393968458
2004-01-01	55.1722400159021
2004-04-01	55.1259340467320
2004-07-01	54.7371138000195
2004-10-01	54.6666747453084
2005-01-01	53.8043884641042
2005-04-01	53.4376703034959
2005-07-01	52.2532885135343
2005-10-01	52.9670054684806
2006-01-01	51.9489936553544
2006-04-01	52.1565107777501
2006-07-01	52.1498942221904
2006-10-01	52.7970300460777
2007-01-01	52.4414276558531
2007-04-01	52.0085150583969
2007-07-01	51.3022895045988
2007-10-01	51.2940231030663
2008-01-01	50.9838102987910
2008-04-01	50.2688647333471
2008-07-01	50.6578912187489
2008-10-01	49.9676052352310
2009-01-01	49.9303202465857
2009-04-01	49.9864492204656
2009-07-01	50.3584450789221
2009-10-01	51.1484387063322
2010-01-01	50.6217299419579
2010-04-01	50.4509019572878
2010-07-01	50.3322988802030
2010-10-01	49.6810749513632
2011-01-01	49.4511412773548
2011-04-01	48.9122997268012
2011-07-01	49.3385926052051
2011-10-01	49.9134053934401
2012-01-01	49.6143650419114
2012-04-01	47.9770559715824
2012-07-01	46.7130608618766
2012-10-01	46.1054749443972
2013-01-01	46.0969269482199
2013-04-01	45.4825491299838
2013-07-01	44.8133104468514
2013-10-01	44.3475037205706
2014-01-01	44.1176147161777
2014-04-01	43.8667428164402
2014-07-01	42.4748929559624
2014-10-01	42.2788328632338
2015-01-01	42.6729268821151
2015-04-01	41.8503620387869
2015-07-01	41.7252615935908
2015-10-01	41.7682715697600
2016-01-01	40.6891157710868
2016-04-01	39.5245776772772
2016-07-01	38.8354167712836
2016-10-01	37.5607467737377
2017-01-01	37.2182946454657
2017-04-01	36.8267584138787
2017-07-01	36.0583221593323
2017-10-01	35.3157963274606
2018-01-01	34.2327810503071
2018-04-01	33.5760700743125