Quarter	Percent, Seasonally Adjusted
1998-01-01	43.5651305506291
1998-04-01	43.6327618776983
1998-07-01	43.8886345361717
1998-10-01	43.3757716802564
1999-01-01	43.2938567643138
1999-04-01	43.1304078664359
1999-07-01	43.0323406337627
1999-10-01	43.0746247817333
2000-01-01	42.4832036362379
2000-04-01	42.4945075880551
2000-07-01	41.9846637105756
2000-10-01	42.0634260174508
2001-01-01	41.5176558013844
2001-04-01	41.6469158743288
2001-07-01	41.6349474372902
2001-10-01	41.2357723092953
2002-01-01	41.2749398618246
2002-04-01	40.8804300461912
2002-07-01	40.3693796702212
2002-10-01	40.3179874795372
2003-01-01	39.8578013277177
2003-04-01	39.9560343297901
2003-07-01	40.2987776747111
2003-10-01	40.2412669368540
2004-01-01	40.3490359170964
2004-04-01	40.1290471291625
2004-07-01	39.7576080409951
2004-10-01	39.5030551887559
2005-01-01	39.4157928126276
2005-04-01	39.1166301626697
2005-07-01	38.7578992398024
2005-10-01	38.6802216206056
2006-01-01	38.8619197558254
2006-04-01	38.6425797586195
2006-07-01	38.4365489620210
2006-10-01	38.5127325784976
2007-01-01	38.2247478818398
2007-04-01	38.2065026202039
2007-07-01	37.7734562460706
2007-10-01	37.7659026284862
2008-01-01	38.1223653251496
2008-04-01	37.7089073162842
2008-07-01	37.7453746437717
2008-10-01	38.1258761649344
2009-01-01	37.7571952800923
2009-04-01	38.1257757401752
2009-07-01	38.0518854876256
2009-10-01	37.6682212567769
2010-01-01	37.2114483929838
2010-04-01	37.2118932482293
2010-07-01	37.4709087465829
2010-10-01	37.6777726783572
2011-01-01	38.0575619128366
2011-04-01	37.7588336647695
2011-07-01	38.4404661967865
2011-10-01	38.5780199026013
2012-01-01	38.0768055419072
2012-04-01	37.8996672324412
2012-07-01	37.8705626161958
2012-10-01	38.2932589338319
2013-01-01	38.6550617812971
2013-04-01	38.4484398822193
2013-07-01	38.3465097690899
2013-10-01	37.9351795432188
2014-01-01	38.5789781283142
2014-04-01	38.3435517787316
2014-07-01	38.1129868292012
2014-10-01	38.5439040950203
2015-01-01	38.1782220775840
2015-04-01	38.1194911253078
2015-07-01	38.2809521262238
2015-10-01	38.4337374739193
2016-01-01	38.4776851905307
2016-04-01	38.8089008251391
2016-07-01	38.2810500529026
2016-10-01	38.1650331844742
2017-01-01	38.0937537051360
2017-04-01	37.7674203374076
2017-07-01	37.3810365603230
2017-10-01	37.5047155151080
2018-01-01	37.3183019929824
2018-04-01	37.0964683263149