Quarter	Percent, Seasonally Adjusted
1999-01-01	37.9439455185646
1999-04-01	37.8046743029979
1999-07-01	37.5744876658548
1999-10-01	37.4046219580201
2000-01-01	36.9230019989655
2000-04-01	36.9887614707356
2000-07-01	36.8856807246420
2000-10-01	36.5417043562991
2001-01-01	36.2683638864890
2001-04-01	36.2476222216216
2001-07-01	36.2378209556638
2001-10-01	36.4825249546511
2002-01-01	36.9271471317947
2002-04-01	36.8565547929373
2002-07-01	36.7544342237804
2002-10-01	36.7358240625654
2003-01-01	36.7033319164650
2003-04-01	36.5949039063540
2003-07-01	36.3827833675990
2003-10-01	36.3653366857699
2004-01-01	36.7841158609057
2004-04-01	36.8229825221911
2004-07-01	36.9931610971883
2004-10-01	37.5032947744678
2005-01-01	37.8382984965614
2005-04-01	38.5693478322664
2005-07-01	38.8441444714465
2005-10-01	38.7220546765770
2006-01-01	39.2900585666617
2006-04-01	39.0779712930887
2006-07-01	38.8689262917233
2006-10-01	39.0447860185095
2007-01-01	39.2240368729069
2007-04-01	39.3155787009342
2007-07-01	39.4613726384060
2007-10-01	38.9353542103830
2008-01-01	38.7258773488500
2008-04-01	38.7391214882489
2008-07-01	38.2872133009567
2008-10-01	38.8604911342499
2009-01-01	39.6680965934695
2009-04-01	39.5208307541058
2009-07-01	39.3216156987853
2009-10-01	39.1048012241180
2010-01-01	38.9409187621231
2010-04-01	38.7930436292471
2010-07-01	38.5434390925235
2010-10-01	38.5017087669073
2011-01-01	39.3024133815522
2011-04-01	39.4150003154808
2011-07-01	39.1263949315752
2011-10-01	38.7748474141121
2012-01-01	38.5172888559486
2012-04-01	38.2476134167830
2012-07-01	38.1104859956097
2012-10-01	38.3273465971622
2013-01-01	37.7314893631407
2013-04-01	37.8218679846519
2013-07-01	37.4402897409492
2013-10-01	37.1922105238005
2014-01-01	37.4340569749562
2014-04-01	37.3241042713834
2014-07-01	37.1295709106956
2014-10-01	36.6910347150179
2015-01-01	36.2992791049586
2015-04-01	36.1315752338488
2015-07-01	35.5288594484885
2015-10-01	34.9621138750320
2016-01-01	34.8737838614726
2016-04-01	34.5769684599301
2016-07-01	34.4729589264025
2016-10-01	34.5498913685214
2017-01-01	34.3907268223474
2017-04-01	34.2843914897554
2017-07-01	33.9302465015188
2017-10-01	33.8739097520858
2018-01-01	34.1724839425611
2018-04-01	34.5735909509422