Quarter	Percent, Seasonally Adjusted
1999-01-01	12.5613362139405
1999-04-01	12.8142198844896
1999-07-01	12.3751597590544
1999-10-01	11.9731401892233
2000-01-01	11.6782754213699
2000-04-01	11.7538531841577
2000-07-01	11.6433102019097
2000-10-01	11.3908240011253
2001-01-01	11.1376657367111
2001-04-01	11.0691060063118
2001-07-01	11.0515346946044
2001-10-01	10.9445410775543
2002-01-01	11.4623075735623
2002-04-01	11.5986827997351
2002-07-01	11.2608010184118
2002-10-01	11.1647814066761
2003-01-01	10.8770456580853
2003-04-01	10.5657592011786
2003-07-01	10.2961754627743
2003-10-01	10.3054451803912
2004-01-01	10.9460777428157
2004-04-01	10.8915495025134
2004-07-01	11.0651697307390
2004-10-01	11.3671546655350
2005-01-01	11.6266488768253
2005-04-01	12.0325985710782
2005-07-01	12.3103263614042
2005-10-01	12.0860104536921
2006-01-01	12.3479835576160
2006-04-01	12.2385417080064
2006-07-01	12.4096052155406
2006-10-01	12.5214486094619
2007-01-01	12.9387718994362
2007-04-01	13.2851940548371
2007-07-01	13.3045108992152
2007-10-01	12.8764556249407
2008-01-01	12.7679237350925
2008-04-01	12.3656528340771
2008-07-01	11.7757661579990
2008-10-01	12.0138719064765
2009-01-01	12.6690101521190
2009-04-01	12.8205811092189
2009-07-01	12.8956702200971
2009-10-01	12.8619571981316
2010-01-01	13.1380755341548
2010-04-01	13.2415014573468
2010-07-01	12.9738348580389
2010-10-01	12.8894342668877
2011-01-01	13.0917108136440
2011-04-01	13.2028244624828
2011-07-01	12.8185677383286
2011-10-01	12.7768888809201
2012-01-01	12.4902312457443
2012-04-01	12.7581471708752
2012-07-01	12.7711832795810
2012-10-01	13.4107681863432
2013-01-01	12.6995389984444
2013-04-01	13.1096117349999
2013-07-01	12.8160587695677
2013-10-01	12.6486097710958
2014-01-01	12.5231190393319
2014-04-01	12.7215338870059
2014-07-01	12.8226978769726
2014-10-01	12.6541846871550
2015-01-01	12.8067060152982
2015-04-01	12.7870466629867
2015-07-01	12.7834099826662
2015-10-01	12.4558276892057
2016-01-01	12.1345429395467
2016-04-01	12.1454749951954
2016-07-01	12.4145559428276
2016-10-01	12.9770847441859
2017-01-01	13.0507862301239
2017-04-01	13.5262990606613
2017-07-01	13.2191988413594
2017-10-01	13.9120188490285
2018-01-01	13.4415002820999
2018-04-01	13.7649690800910