Quarter	Percent, Seasonally Adjusted
1999-01-01	16.3182598013992
1999-04-01	16.4477244928046
1999-07-01	15.0425601146247
1999-10-01	15.8639499098655
2000-01-01	15.8227498902574
2000-04-01	15.6726533913601
2000-07-01	16.5922864295657
2000-10-01	15.8119995220174
2001-01-01	15.5349770765490
2001-04-01	16.4242666120680
2001-07-01	15.1040591050624
2001-10-01	15.3130551222142
2002-01-01	15.7844033860541
2002-04-01	15.5928367862011
2002-07-01	17.0062267946864
2002-10-01	16.9639217527505
2003-01-01	16.7183633352246
2003-04-01	16.4122281856925
2003-07-01	16.1332501871875
2003-10-01	15.8070458223228
2004-01-01	16.5048355211705
2004-04-01	15.0553046941227
2004-07-01	14.0718825124318
2004-10-01	15.3690626227982
2005-01-01	15.5895898086544
2005-04-01	15.8294382352336
2005-07-01	15.5676252995388
2005-10-01	15.1388138570538
2006-01-01	14.2798929648646
2006-04-01	14.8614401144162
2006-07-01	14.5403749944400
2006-10-01	14.5870149032912
2007-01-01	14.5412853105225
2007-04-01	15.4862439405019
2007-07-01	14.8431600916423
2007-10-01	13.7917709685199
2008-01-01	14.1245406678398
2008-04-01	14.4912016633737
2008-07-01	13.4517534270738
2008-10-01	12.3755107151870
2009-01-01	12.9854157085981
2009-04-01	13.1461292233355
2009-07-01	12.9102948681549
2009-10-01	15.0196961854055
2010-01-01	14.8211891807124
2010-04-01	14.6606501066023
2010-07-01	14.2653500503699
2010-10-01	15.1915958425759
2011-01-01	15.7941886280509
2011-04-01	15.6080975576662
2011-07-01	14.7440079683442
2011-10-01	14.8652101280947
2012-01-01	14.7890120379209
2012-04-01	14.8219556932967
2012-07-01	15.1337925854599
2012-10-01	15.8409021241927
2013-01-01	15.4357878890891
2013-04-01	14.5968320110367
2013-07-01	15.1627210867172
2013-10-01	15.5079028530218
2014-01-01	16.3270760263480
2014-04-01	16.0195011547830
2014-07-01	16.2448600201351
2014-10-01	16.2454400632437
2015-01-01	16.3790950085445
2015-04-01	17.4763814915651
2015-07-01	16.4441702286954
2015-10-01	16.1136889316604
2016-01-01	15.9269862532301
2016-04-01	16.1720668583751
2016-07-01	16.1726457720874
2016-10-01	16.3940852384988
2017-01-01	17.2777668117449
2017-04-01	17.8623337917938
2017-07-01	16.5689103476045
2017-10-01	17.6143324861991
2018-01-01	16.8492933112012
2018-04-01	16.6263157884688