Quarter	Percent, Seasonally Adjusted
1998-01-01	16.4890116711889
1998-04-01	15.9655819474676
1998-07-01	15.6601853828334
1998-10-01	15.7765571100335
1999-01-01	15.4429922813850
1999-04-01	14.8747651477230
1999-07-01	15.4356002433488
1999-10-01	15.2061300486554
2000-01-01	15.4539414350194
2000-04-01	15.2205820166497
2000-07-01	14.5470976780669
2000-10-01	15.1390196270124
2001-01-01	15.3291680797588
2001-04-01	15.0124452797520
2001-07-01	15.3800256350639
2001-10-01	14.4203726451241
2002-01-01	14.2557748354392
2002-04-01	14.4292953181131
2002-07-01	14.7447445645699
2002-10-01	14.7794531961368
2003-01-01	14.7294170296655
2003-04-01	15.1653598878146
2003-07-01	15.9126749397934
2003-10-01	15.1321641953107
2004-01-01	15.7070168279474
2004-04-01	15.4711963889371
2004-07-01	15.1963095150975
2004-10-01	15.4489171938892
2005-01-01	14.6036326769284
2005-04-01	15.0614239915734
2005-07-01	15.1472032250132
2005-10-01	14.9461708219407
2006-01-01	14.4886457176794
2006-04-01	14.7872932097981
2006-07-01	14.5883327826295
2006-10-01	15.0522353636853
2007-01-01	14.3694881941120
2007-04-01	14.6377040649466
2007-07-01	14.4637458758213
2007-10-01	14.1967354352344
2008-01-01	14.1202794839993
2008-04-01	14.0926254362815
2008-07-01	14.1021403581194
2008-10-01	14.2339178926016
2009-01-01	14.2275991060052
2009-04-01	14.4195995646860
2009-07-01	14.3190515485767
2009-10-01	14.1710825617868
2010-01-01	15.0973015601720
2010-04-01	15.2223682359078
2010-07-01	15.9816114782514
2010-10-01	15.9919617920533
2011-01-01	16.1108492715786
2011-04-01	16.2763888220426
2011-07-01	15.3862597387363
2011-10-01	15.0062657871795
2012-01-01	15.6563643971823
2012-04-01	15.9344471674085
2012-07-01	15.2605878846748
2012-10-01	16.6453359519135
2013-01-01	16.4672977623418
2013-04-01	16.6089718884436
2013-07-01	17.0209516442104
2013-10-01	16.6848346264181
2014-01-01	16.5603557780776
2014-04-01	16.3467543123874
2014-07-01	15.9285396280232
2014-10-01	16.7296082194006
2015-01-01	16.5639485118592
2015-04-01	16.3896009583979
2015-07-01	16.2973366813243
2015-10-01	16.3579187264161
2016-01-01	16.9178479732777
2016-04-01	17.2087455933807
2016-07-01	17.1708859015164
2016-10-01	17.6127676570895
2017-01-01	17.0041833367458
2017-04-01	16.3488569554841
2017-07-01	16.7823070012349
2017-10-01	15.4112319457847
2018-01-01	15.5473431453965
2018-04-01	15.3839232662347