Quarter	Percent, Seasonally Adjusted
1999-01-01	11.83673716936270
1999-04-01	11.02429178518880
1999-07-01	10.66051315763770
1999-10-01	10.47198436406800
2000-01-01	10.00782245426600
2000-04-01	9.71071415940496
2000-07-01	9.45661228820406
2000-10-01	9.26155368228110
2001-01-01	7.55057970917239
2001-04-01	7.55552666274486
2001-07-01	7.50329028833652
2001-10-01	7.56870122415322
2002-01-01	8.02515261471847
2002-04-01	8.04305900098164
2002-07-01	8.53702172387900
2002-10-01	8.60263186995616
2003-01-01	8.44272829036559
2003-04-01	8.42030975152960
2003-07-01	8.59831896367524
2003-10-01	8.54990916203338
2004-01-01	8.37858176578024
2004-04-01	8.42593519603541
2004-07-01	8.43352977732480
2004-10-01	7.82425650655701
2005-01-01	7.54404421571938
2005-04-01	7.47079490317149
2005-07-01	6.81658744004594
2005-10-01	6.73406958028661
2006-01-01	6.54620311127962
2006-04-01	6.41820295726042
2006-07-01	6.33163178342542
2006-10-01	6.12829808187104
2007-01-01	6.01543225105422
2007-04-01	6.17591234786557
2007-07-01	6.56468902981803
2007-10-01	6.89402777411966
2008-01-01	7.53482781584550
2008-04-01	9.07374146909878
2008-07-01	10.65977148040420
2008-10-01	12.96500838363630
2009-01-01	16.40744556663740
2009-04-01	17.58122688153090
2009-07-01	18.06962087675790
2009-10-01	18.59152642520450
2010-01-01	19.30596363257160
2010-04-01	19.59229420897680
2010-07-01	19.58141412084270
2010-10-01	19.84011403455800
2011-01-01	20.06139211812070
2011-04-01	20.48000664654660
2011-07-01	21.37990766181320
2011-10-01	22.30908141227380
2012-01-01	23.37411273602020
2012-04-01	24.53018937952100
2012-07-01	25.04202807287150
2012-10-01	25.44655294794340
2013-01-01	26.04336547973440
2013-04-01	25.62964313167960
2013-07-01	25.71522048215460
2013-10-01	25.07534507023380
2014-01-01	24.72887876713060
2014-04-01	23.84969711177500
2014-07-01	23.05462486252580
2014-10-01	22.82363856898040
2015-01-01	22.08741267380870
2015-04-01	21.12004619918830
2015-07-01	20.42136448208220
2015-10-01	19.50436260223070
2016-01-01	18.79990955869700
2016-04-01	18.57930272219920
2016-07-01	17.90871424677660
2016-10-01	17.21973172144380
2017-01-01	16.55902810824690
2017-04-01	15.82632665825190
2017-07-01	15.31261631081390
2017-10-01	14.95983734298420
2018-01-01	14.50820795305520
2018-04-01	13.91988277143140
2018-07-01	13.62226369603370