Quarter	Percent, Seasonally Adjusted
1999-01-01	13.0822381745712
1999-04-01	12.7749467203846
1999-07-01	13.2466907629526
1999-10-01	11.9956085368956
2000-01-01	12.2347984642670
2000-04-01	12.8897011045842
2000-07-01	12.4159415068050
2000-10-01	12.3930431303520
2001-01-01	11.7235629845965
2001-04-01	11.2804705256327
2001-07-01	10.7107438997958
2001-10-01	11.5525493451009
2002-01-01	11.5387854270968
2002-04-01	11.9989828412394
2002-07-01	13.6785534221597
2002-10-01	13.4809285403592
2003-01-01	14.0570784061665
2003-04-01	13.4835736804853
2003-07-01	12.8904738170825
2003-10-01	12.9029975679802
2004-01-01	13.8602690273947
2004-04-01	15.0043284108856
2004-07-01	15.9112055906744
2004-10-01	17.2021842763163
2005-01-01	18.3398303200617
2005-04-01	19.9775018429238
2005-07-01	19.9680947790716
2005-10-01	19.2791401566778
2006-01-01	18.8659728621941
2006-04-01	18.1323115492773
2006-07-01	19.7180497556516
2006-10-01	19.8662698230610
2007-01-01	18.4354915878335
2007-04-01	16.8711853612121
2007-07-01	17.3929786200522
2007-10-01	19.4312935560734
2008-01-01	19.1400520134972
2008-04-01	19.2462533179845
2008-07-01	19.7722621322109
2008-10-01	19.8345838823084
2009-01-01	24.3292443694824
2009-04-01	25.7703366184981
2009-07-01	26.9942686428029
2009-10-01	28.5709099577192
2010-01-01	26.7179463124129
2010-04-01	27.1724580239579
2010-07-01	25.9576588549483
2010-10-01	25.7740288091461
2011-01-01	26.0686219126927
2011-04-01	24.8113769467045
2011-07-01	25.9401319572160
2011-10-01	27.1423941852211
2012-01-01	27.8245969097478
2012-04-01	28.7635641785162
2012-07-01	28.3611787367576
2012-10-01	27.8862866342756
2013-01-01	29.1563913943015
2013-04-01	26.1900223787104
2013-07-01	26.3404818047323
2013-10-01	24.6226183470053
2014-01-01	20.6214911814941
2014-04-01	21.2268803488232
2014-07-01	21.0132749506236
2014-10-01	18.6986477672001
2015-01-01	19.0573332629742
2015-04-01	18.2889311977229
2015-07-01	16.1137717397725
2015-10-01	15.7477801442303
2016-01-01	14.0979690564499
2016-04-01	13.7842053583826
2016-07-01	12.1747537751407
2016-10-01	11.6621019358918
2017-01-01	10.5832921295768
2017-04-01	11.4895704315521
2017-07-01	10.4894084963572
2017-10-01	10.2328540111703
2018-01-01	10.6843004922043
2018-04-01	10.0259494872653