Quarter	Percent, Seasonally Adjusted
1999-01-01	26.6442011562970
1999-04-01	26.9315765563439
1999-07-01	27.1062739448959
1999-10-01	27.1278831227982
2000-01-01	26.9281577755030
2000-04-01	27.2771520274044
2000-07-01	27.5175007963639
2000-10-01	27.5961764427441
2001-01-01	27.6489951569194
2001-04-01	27.8277643124964
2001-07-01	27.8112319582104
2001-10-01	27.6198103982937
2002-01-01	27.6525084779851
2002-04-01	27.8075567952044
2002-07-01	27.9094525300680
2002-10-01	27.6743701020542
2003-01-01	27.1024634806611
2003-04-01	27.3651177840571
2003-07-01	27.5346729765407
2003-10-01	27.2925474266468
2004-01-01	29.9361871436583
2004-04-01	29.6381974824135
2004-07-01	29.6728607668358
2004-10-01	29.8390346000998
2005-01-01	29.9450658838492
2005-04-01	29.5368057614769
2005-07-01	29.0760474707257
2005-10-01	28.8699298881250
2006-01-01	28.9360467838374
2006-04-01	28.9338547926974
2006-07-01	28.8008341317293
2006-10-01	28.8290236131656
2007-01-01	28.3970428714477
2007-04-01	27.9934957752552
2007-07-01	27.7169614412139
2007-10-01	28.0061694074906
2008-01-01	27.8273662942295
2008-04-01	27.8978391068182
2008-07-01	28.1242804595055
2008-10-01	28.2195971690719
2009-01-01	28.3471807877919
2009-04-01	28.2332222201356
2009-07-01	28.0776795165010
2009-10-01	27.9576688537562
2010-01-01	28.2814322008715
2010-04-01	28.3329237012217
2010-07-01	28.2228118310860
2010-10-01	28.2128133589918
2011-01-01	28.2387119077644
2011-04-01	28.3184046125747
2011-07-01	28.4681266064484
2011-10-01	28.4333442715283
2012-01-01	28.5345895628119
2012-04-01	28.1966023423347
2012-07-01	28.2383449523392
2012-10-01	28.2161054026851
2013-01-01	28.0694186021516
2013-04-01	28.1417003171365
2013-07-01	28.2684755259676
2013-10-01	28.5290522072964
2014-01-01	28.7250465775631
2014-04-01	28.7670559008656
2014-07-01	28.5606378433632
2014-10-01	28.5065165333354
2015-01-01	28.3072938678054
2015-04-01	28.3770709377488
2015-07-01	28.2678348976315
2015-10-01	28.1286122018694
2016-01-01	27.8753728515970
2016-04-01	27.6043161238344
2016-07-01	27.4039957676650
2016-10-01	27.5560661060148
2017-01-01	27.5980477472897
2017-04-01	27.3574252107200
2017-07-01	27.1730551743133
2017-10-01	26.8951772137091
2018-01-01	26.6888321507635
2018-04-01	26.6268632941136