Quarter	Percent, Seasonally Adjusted
1986-01-01	11.5644187613616
1986-04-01	11.9158050805489
1986-07-01	12.4310139542314
1986-10-01	13.0694915472456
1987-01-01	12.5512851141416
1987-04-01	12.9921944097588
1987-07-01	12.9399192027210
1987-10-01	13.7282215816154
1988-01-01	14.5266945317179
1988-04-01	14.8875129623343
1988-07-01	15.7140023949194
1988-10-01	15.6849909768602
1989-01-01	15.8281733981554
1989-04-01	16.2648062034601
1989-07-01	16.6091455418235
1989-10-01	16.9351759849221
1990-01-01	17.0147148865247
1990-04-01	16.5177760861527
1990-07-01	16.9237836469233
1990-10-01	16.6845948663485
1991-01-01	17.0069657136529
1991-04-01	16.9232125867526
1991-07-01	16.8605590842682
1991-10-01	17.2387851118489
1992-01-01	17.0381426304640
1992-04-01	17.3079120918464
1992-07-01	17.7509444011941
1992-10-01	17.9792981083891
1993-01-01	17.7130305006606
1993-04-01	17.1953775330132
1993-07-01	17.6217753206768
1993-10-01	17.1042943198574
1994-01-01	17.2974456417145
1994-04-01	16.6944722214387
1994-07-01	16.7244000543756
1994-10-01	16.8439085438163
1995-01-01	16.6104942241875
1995-04-01	16.4974608673167
1995-07-01	16.2650245742825
1995-10-01	16.0030930737611
1996-01-01	16.1457456914296
1996-04-01	16.2707924856556
1996-07-01	15.7626256135885
1996-10-01	16.0813391917943
1997-01-01	16.3349189259756
1997-04-01	16.0072057438533
1997-07-01	15.9291309228037
1997-10-01	15.8607594718760
1998-01-01	16.0785340361232
1998-04-01	16.4470892187319
1998-07-01	16.8551100185220
1998-10-01	17.2064608186492
1999-01-01	16.9271627392531
1999-04-01	17.3245026517835
1999-07-01	17.0695232991501
1999-10-01	16.7264126643305
2000-01-01	16.9769711070282
2000-04-01	17.3962808341144
2000-07-01	16.7380439380407
2000-10-01	16.4499870503483
2001-01-01	16.8090146661756
2001-04-01	17.0791666076162
2001-07-01	16.6742980161334
2001-10-01	16.3871394566228
2002-01-01	15.4747219244117
2002-04-01	16.3825556842772
2002-07-01	16.1178008625642
2002-10-01	16.5793092876186
2003-01-01	16.7408727347962
2003-04-01	17.2640046725383
2003-07-01	16.9849191042900
2003-10-01	17.1990515697116
2004-01-01	17.1093855011069
2004-04-01	16.3754276715701
2004-07-01	16.2531186028668
2004-10-01	15.5859222337388
2005-01-01	15.7114467066229
2005-04-01	16.1443916171168
2005-07-01	15.5020029447985
2005-10-01	15.1986954776331
2006-01-01	14.8546745242119
2006-04-01	15.0783701755191
2006-07-01	15.0502798826568
2006-10-01	15.0944841173715
2007-01-01	14.9743905703313
2007-04-01	15.3203080878697
2007-07-01	14.8797728117925
2007-10-01	15.2054420700787
2008-01-01	16.2516192368864
2008-04-01	15.3615158309268
2008-07-01	15.6987914944703
2008-10-01	15.3731438092314
2009-01-01	16.4059662070846
2009-04-01	15.7297879736366
2009-07-01	16.7258429318557
2009-10-01	16.4261454122361
2010-01-01	17.0352951086083
2010-04-01	16.4783392244106
2010-07-01	16.3719916277703
2010-10-01	16.9464087939499
2011-01-01	16.7031075358558
2011-04-01	16.8488257176832
2011-07-01	16.6257102538935
2011-10-01	16.7456355306401
2012-01-01	16.2878788593590
2012-04-01	17.1483869168679
2012-07-01	17.2863182872192
2012-10-01	18.3858700273234
2013-01-01	18.0859769149075
2013-04-01	17.3856956511740
2013-07-01	16.8870135962489
2013-10-01	16.6742255532299
2014-01-01	16.2769945002960
2014-04-01	16.1242669208469
2014-07-01	16.3561883057342
2014-10-01	15.9095638305932
2015-01-01	15.3554181422881
2015-04-01	15.8557283472630
2015-07-01	16.5330630724561
2015-10-01	16.5455094013658
2016-01-01	15.9405596628573
2016-04-01	15.2107603274271
2016-07-01	14.7073608506594
2016-10-01	14.3148659561062
2017-01-01	14.0887267070209
2017-04-01	14.6372882776761
2017-07-01	14.2004771083498
2017-10-01	14.1127269206747
2018-01-01	14.1607016273783
2018-04-01	14.0989529633044
2018-07-01	14.1927090483335