Quarter	Percent, Seasonally Adjusted
1999-04-01	54.0385865462016
1999-07-01	54.5782400025017
1999-10-01	54.6486461209875
2000-01-01	54.6606777350115
2000-04-01	54.5430329605999
2000-07-01	54.9198679023263
2000-10-01	54.1413567170313
2001-01-01	54.1273276482823
2001-04-01	54.0694100738507
2001-07-01	54.1285730485553
2001-10-01	54.7542034145030
2002-01-01	54.4750336147614
2002-04-01	54.9559048389164
2002-07-01	54.7452222669846
2002-10-01	54.2064363780804
2003-01-01	54.0713219875119
2003-04-01	53.7132967535673
2003-07-01	53.0444943279402
2003-10-01	54.2954136366792
2004-01-01	54.7028181432390
2004-04-01	54.3186671015498
2004-07-01	53.7645683525395
2004-10-01	53.7130730543958
2005-01-01	53.8934552653804
2005-04-01	52.6394592089651
2005-07-01	52.6504857460649
2005-10-01	51.6793842194787
2006-01-01	52.4443901948217
2006-04-01	52.8613652113595
2006-07-01	52.3241250928652
2006-10-01	52.4832562642151
2007-01-01	51.0948589077296
2007-04-01	50.8900220739447
2007-07-01	51.4148729042730
2007-10-01	51.6050115598391
2008-01-01	51.4013088279818
2008-04-01	51.3537693709100
2008-07-01	50.5010009119688
2008-10-01	49.6845790487363
2009-01-01	49.0716849355609
2009-04-01	47.9949253462569
2009-07-01	47.4270533009878
2009-10-01	47.1612618756818
2010-01-01	46.6527833851948
2010-04-01	46.6286603223975
2010-07-01	46.2538382329609
2010-10-01	44.8068739835062
2011-01-01	45.3535839395512
2011-04-01	45.5183381303161
2011-07-01	45.1223043923884
2011-10-01	45.3687862622225
2012-01-01	45.2573995192169
2012-04-01	45.8478626383419
2012-07-01	46.0246634432546
2012-10-01	47.0423191954340
2013-01-01	46.4382035118453
2013-04-01	45.4668860579757
2013-07-01	46.1959341902722
2013-10-01	46.5303547043810
2014-01-01	46.4516014199573
2014-04-01	47.9232439625652
2014-07-01	48.5059355504179
2014-10-01	48.2304014480663
2015-01-01	49.0955442696471
2015-04-01	49.7370597787666
2015-07-01	49.8752686659055
2015-10-01	49.9030805365683
2016-01-01	50.2401775278800
2016-04-01	51.1624549434816
2016-07-01	51.4414438409557
2016-10-01	51.7473924063297
2017-01-01	51.5156062243231
2017-04-01	50.9459074768156
2017-07-01	50.5663052953717
2017-10-01	50.4565568513913
2018-01-01	50.4944045891297
2018-04-01	50.0232083758827