Quarter	Percent, Seasonally Adjusted
1999-01-01	41.8708223898813
1999-04-01	41.7196465994674
1999-07-01	41.6329025315332
1999-10-01	41.5669868067441
2000-01-01	41.5977557185584
2000-04-01	41.4063982420670
2000-07-01	41.2148098397418
2000-10-01	40.9613193639787
2001-01-01	41.8061702747820
2001-04-01	42.1885417091630
2001-07-01	42.2984928766033
2001-10-01	42.4816584248801
2002-01-01	42.4047050635920
2002-04-01	42.4135078442726
2002-07-01	42.3480234120007
2002-10-01	42.2580876983830
2003-01-01	42.1775909191594
2003-04-01	41.7805738597104
2003-07-01	41.7744380886248
2003-10-01	41.9112736301095
2004-01-01	41.8780940837223
2004-04-01	42.1588261448303
2004-07-01	42.2493514384880
2004-10-01	42.0924724470423
2005-01-01	41.8954562287167
2005-04-01	41.9123899096772
2005-07-01	41.5480760240437
2005-10-01	41.4206824308577
2006-01-01	41.2714892061688
2006-04-01	40.9658206074268
2006-07-01	41.1047107613901
2006-10-01	40.7631004229125
2007-01-01	40.9336209110838
2007-04-01	41.1417590677030
2007-07-01	41.3709545239513
2007-10-01	41.5962978547770
2008-01-01	41.8698297325948
2008-04-01	41.9123002519552
2008-07-01	41.6587116896517
2008-10-01	42.0781547532663
2009-01-01	42.0839778526982
2009-04-01	42.0047741691871
2009-07-01	42.2657643018076
2009-10-01	42.1189372179762
2010-01-01	42.2064819536701
2010-04-01	42.1751477258225
2010-07-01	42.1879472386705
2010-10-01	42.0599424467134
2011-01-01	41.9507463714238
2011-04-01	41.8479717056835
2011-07-01	41.5065916418186
2011-10-01	41.3804185539188
2012-01-01	41.1937938916427
2012-04-01	40.8678876217463
2012-07-01	40.6879456065304
2012-10-01	40.2567205587536
2013-01-01	40.7460436812155
2013-04-01	39.9343554844056
2013-07-01	39.4527028411866
2013-10-01	39.1859214858513
2014-01-01	38.4392831862593
2014-04-01	38.3524012814796
2014-07-01	37.9620042971739
2014-10-01	37.8233892421597
2015-01-01	37.4757570636551
2015-04-01	37.0739562297694
2015-07-01	36.6364076376813
2015-10-01	36.3391048071914
2016-01-01	35.9949368424859
2016-04-01	35.7390303235825
2016-07-01	35.6302570866515
2016-10-01	35.2962849824240
2017-01-01	35.2565742109973
2017-04-01	34.8048698172207
2017-07-01	34.7130824680164
2017-10-01	34.5278104986762
2018-01-01	34.3139718787171
2018-04-01	34.3988022574338