Quarter	Percent, Seasonally Adjusted
1986-01-01	32.0622625989094
1986-04-01	32.7860794979761
1986-07-01	32.3626155074503
1986-10-01	35.1629429982122
1987-01-01	34.4274842064274
1987-04-01	35.9608039219492
1987-07-01	35.2703533628309
1987-10-01	37.3398000829228
1988-01-01	36.6240732136786
1988-04-01	39.6443437771005
1988-07-01	41.4846967950351
1988-10-01	41.7158831933532
1989-01-01	43.2982157444660
1989-04-01	43.2576138641058
1989-07-01	43.9930083448742
1989-10-01	43.3779724496672
1990-01-01	42.8720512464806
1990-04-01	43.4595697344206
1990-07-01	43.4306709493908
1990-10-01	43.7468984495562
1991-01-01	43.6961545892955
1991-04-01	43.5883517034762
1991-07-01	43.4229467593362
1991-10-01	43.6228573394436
1992-01-01	43.2838261128117
1992-04-01	43.7387144927109
1992-07-01	43.9487514654742
1992-10-01	43.4343356981339
1993-01-01	42.6899803234404
1993-04-01	40.2027586706674
1993-07-01	40.0800941902713
1993-10-01	39.3225072488881
1994-01-01	38.7879732999908
1994-04-01	37.6621213143971
1994-07-01	37.3785595663195
1994-10-01	36.1712549629033
1995-01-01	35.6986950715003
1995-04-01	35.8737337575923
1995-07-01	34.2913628831023
1995-10-01	33.9701035416900
1996-01-01	31.3618421059947
1996-04-01	31.7836174565450
1996-07-01	31.4449960342964
1996-10-01	30.8193518904187
1997-01-01	31.5031468379118
1997-04-01	29.6701159089576
1997-07-01	31.3770349765537
1997-10-01	31.0342120746320
1998-01-01	30.3080716368746
1998-04-01	29.3773717557314
1998-07-01	29.4590478626540
1998-10-01	29.6878305115860
1999-01-01	27.8196661557071
1999-04-01	29.4610681704413
1999-07-01	28.2432414721221
1999-10-01	29.4644298028085
2000-01-01	29.1807696484493
2000-04-01	28.9959540261417
2000-07-01	27.9832124330889
2000-10-01	26.3366406407188
2001-01-01	26.3326741588817
2001-04-01	26.5935964287574
2001-07-01	26.2020837680233
2001-10-01	25.7462204711649
2002-01-01	23.0899660284553
2002-04-01	22.6510906781211
2002-07-01	23.0458822227004
2002-10-01	23.0659474431193
2003-01-01	24.6759934449324
2003-04-01	23.9929807587153
2003-07-01	24.1677887112278
2003-10-01	23.2391663687096
2004-01-01	24.0136093768431
2004-04-01	22.1156555744998
2004-07-01	21.6444558897699
2004-10-01	20.1952645030161
2005-01-01	20.7243065359238
2005-04-01	20.5878147734131
2005-07-01	20.4452969411698
2005-10-01	20.0983915382317
2006-01-01	19.2223740227034
2006-04-01	18.2753209860960
2006-07-01	18.7256350278428
2006-10-01	19.4567947028140
2007-01-01	17.3448828990620
2007-04-01	18.0097305694999
2007-07-01	19.1093977187743
2007-10-01	18.0117764363310
2008-01-01	18.3592684101954
2008-04-01	18.3525496652379
2008-07-01	18.7390827507486
2008-10-01	17.8482415440617
2009-01-01	17.2003727882290
2009-04-01	17.1527194743109
2009-07-01	17.6308035894009
2009-10-01	17.8097770754268
2010-01-01	18.3529470910900
2010-04-01	17.1800905687697
2010-07-01	16.4740084240656
2010-10-01	17.9770934592589
2011-01-01	17.8205781424038
2011-04-01	18.0368770074963
2011-07-01	17.2851309459087
2011-10-01	16.5749133771582
2012-01-01	16.3725650121991
2012-04-01	16.9867836637350
2012-07-01	17.6847987312687
2012-10-01	17.5893522586035
2013-01-01	18.2643229879434
2013-04-01	17.2465704442965
2013-07-01	17.6287009852648
2013-10-01	17.7520100178870
2014-01-01	16.4481304228893
2014-04-01	16.1965187088877
2014-07-01	17.2866575796634
2014-10-01	16.7498894376470
2015-01-01	15.8245515069483
2015-04-01	16.8217320872531
2015-07-01	17.3302817805574
2015-10-01	17.1753406662694
2016-01-01	16.9533884825294
2016-04-01	15.5947425097735
2016-07-01	15.2157219468866
2016-10-01	15.0009339144816
2017-01-01	13.1603755980558
2017-04-01	14.0434342712902
2017-07-01	12.9877770384841
2017-10-01	12.3559774231996
2018-01-01	13.2445243456039
2018-04-01	12.2534382137719
2018-07-01	13.0381429211414