Quarter	Percent, Seasonally Adjusted
1999-01-01	41.1039052148338
1999-04-01	43.2258532177330
1999-07-01	44.1918434628799
1999-10-01	44.1483486689892
2000-01-01	41.1271460371850
2000-04-01	42.0085734302976
2000-07-01	41.5876011106477
2000-10-01	42.1827029046589
2001-01-01	40.6027399712694
2001-04-01	41.3376824561479
2001-07-01	40.2072076647826
2001-10-01	39.8613551698167
2002-01-01	44.0365660293973
2002-04-01	41.3958301590631
2002-07-01	38.5022127579521
2002-10-01	37.7661221782246
2003-01-01	40.3731684572521
2003-04-01	39.5505073275675
2003-07-01	37.0360023059226
2003-10-01	42.5681118753040
2004-01-01	45.0858516540063
2004-04-01	44.3298370028347
2004-07-01	45.3849837013554
2004-10-01	45.5433477634496
2005-01-01	47.3575338626206
2005-04-01	42.1138825476466
2005-07-01	44.1252463089654
2005-10-01	44.5028043725317
2006-01-01	43.8874268959300
2006-04-01	45.7832990909160
2006-07-01	45.4590899309168
2006-10-01	42.4683491396988
2007-01-01	47.2018268022514
2007-04-01	47.2535581199236
2007-07-01	48.9848673905570
2007-10-01	47.1679755000975
2008-01-01	46.1819269713990
2008-04-01	47.4311941749354
2008-07-01	50.6628252280584
2008-10-01	46.5538687625540
2009-01-01	43.3522591213719
2009-04-01	44.6474917917150
2009-07-01	47.5024831541072
2009-10-01	45.9480818193030
2010-01-01	46.0487864925268
2010-04-01	43.4371778667100
2010-07-01	43.1162468756730
2010-10-01	44.7686765360008
2011-01-01	42.4767163514393
2011-04-01	41.3821768178049
2011-07-01	42.6690190187906
2011-10-01	41.3756992267722
2012-01-01	37.9453599873153
2012-04-01	38.3729395787758
2012-07-01	37.6477837956681
2012-10-01	38.6184076157531
2013-01-01	36.7521139991372
2013-04-01	38.9904174297186
2013-07-01	36.5147283926901
2013-10-01	36.2228612888897
2014-01-01	36.0025071989574
2014-04-01	36.6661885112966
2014-07-01	35.1592670980900
2014-10-01	38.4991753723280
2015-01-01	38.5673240125538
2015-04-01	38.8452560383498
2015-07-01	38.7865397318223
2015-10-01	39.5017100113814
2016-01-01	37.7451659006050
2016-04-01	35.4476716980737
2016-07-01	36.0158276418645
2016-10-01	38.0464749215408
2017-01-01	41.5886434773296
2017-04-01	43.8623624929436
2017-07-01	44.4839846270561
2017-10-01	41.4288848741237
2018-01-01	42.7609208295131
2018-04-01	46.1871777053418