Quarter	Percent, Seasonally Adjusted
1999-01-01	22.0573145057930
1999-04-01	22.0542171217355
1999-07-01	21.6341867252737
1999-10-01	21.7271330420563
2000-01-01	21.1133396925608
2000-04-01	21.1802326297116
2000-07-01	21.1324905524709
2000-10-01	21.0124896336963
2001-01-01	21.0927428299192
2001-04-01	21.7909261193748
2001-07-01	21.9795476676065
2001-10-01	21.8340574608358
2002-01-01	22.5768820573355
2002-04-01	22.3161434066536
2002-07-01	22.5881334883833
2002-10-01	22.8011788168409
2003-01-01	22.3522952531269
2003-04-01	22.5339258663523
2003-07-01	22.5833605139338
2003-10-01	22.3054294569306
2004-01-01	22.7889992087865
2004-04-01	22.7643663165018
2004-07-01	22.7503610085084
2004-10-01	22.9455567710034
2005-01-01	23.2182584376955
2005-04-01	22.7425227634786
2005-07-01	22.7749623610723
2005-10-01	22.8501765791583
2006-01-01	22.5721353039214
2006-04-01	22.4649904412540
2006-07-01	22.8910173351114
2006-10-01	23.0267920892789
2007-01-01	23.0833476680888
2007-04-01	23.2632184040698
2007-07-01	23.5349665747843
2007-10-01	23.3512619000730
2008-01-01	22.6083132493934
2008-04-01	22.3902978818454
2008-07-01	22.3843794541863
2008-10-01	24.7441529563576
2009-01-01	26.8974169254730
2009-04-01	26.7407889480479
2009-07-01	25.7741643409803
2009-10-01	24.7506335438002
2010-01-01	24.5705928495737
2010-04-01	24.1719848793687
2010-07-01	24.0914152608710
2010-10-01	23.5700532043168
2011-01-01	23.3246198212631
2011-04-01	23.5784967192810
2011-07-01	23.5297422869325
2011-10-01	23.4351889564310
2012-01-01	23.7144232524947
2012-04-01	23.8366887442878
2012-07-01	24.0745107312766
2012-10-01	24.5345792805906
2013-01-01	24.8916707113968
2013-04-01	24.9343994084313
2013-07-01	25.0933539055781
2013-10-01	25.0575280349604
2014-01-01	25.5855520464234
2014-04-01	26.0002706999193
2014-07-01	25.7963292429055
2014-10-01	26.2702734351241
2015-01-01	27.1164681250386
2015-04-01	27.0937217084738
2015-07-01	27.3418933040200
2015-10-01	28.0269340128123
2016-01-01	28.3579086114597
2016-04-01	27.8276022867737
2016-07-01	27.8081295186172
2016-10-01	27.8875899448662
2017-01-01	27.5234441224362
2017-04-01	27.6439646473290
2017-07-01	27.5563077640642
2017-10-01	27.4608003424039
2018-01-01	27.1421386004342