Quarter	Percent, Seasonally Adjusted
1999-01-01	36.3842917212240
1999-04-01	36.4961379620211
1999-07-01	36.0963220809779
1999-10-01	35.5108050895984
2000-01-01	38.9916840145144
2000-04-01	39.6008458075797
2000-07-01	39.9682171426826
2000-10-01	40.2255725628640
2001-01-01	40.4947492206336
2001-04-01	40.5369386903694
2001-07-01	40.9001466485445
2001-10-01	41.1106736206139
2002-01-01	39.4997009275782
2002-04-01	40.1480815090890
2002-07-01	40.5111586231098
2002-10-01	40.2616331996219
2003-01-01	39.8719842095975
2003-04-01	39.2814187914016
2003-07-01	40.3257669336707
2003-10-01	39.4599409908064
2004-01-01	39.4579621229704
2004-04-01	40.0721463196964
2004-07-01	39.7893671961916
2004-10-01	38.8176495182500
2005-01-01	39.3222849759724
2005-04-01	37.6084570097398
2005-07-01	37.2452303454651
2005-10-01	38.0404138877579
2006-01-01	38.1062672433195
2006-04-01	38.6336710352068
2006-07-01	37.6372998705030
2006-10-01	38.2276496115350
2007-01-01	37.7678444180447
2007-04-01	36.7959981443367
2007-07-01	36.5275575030762
2007-10-01	37.4943761075365
2008-01-01	37.0759227372266
2008-04-01	37.3507663178601
2008-07-01	37.1045190504976
2008-10-01	36.8931306125398
2009-01-01	37.3360509194815
2009-04-01	37.3100527961258
2009-07-01	37.0118323903476
2009-10-01	36.9137429813713
2010-01-01	37.3100423760696
2010-04-01	38.1675398309204
2010-07-01	37.8331950884666
2010-10-01	36.2580353348264
2011-01-01	36.4983064187369
2011-04-01	35.9991535912522
2011-07-01	36.0275767426291
2011-10-01	36.8760121714931
2012-01-01	37.2067701972180
2012-04-01	35.9307870697676
2012-07-01	37.0295854227358
2012-10-01	37.3328116600691
2013-01-01	37.2319172211315
2013-04-01	37.2073897609789
2013-07-01	38.1912175108970
2013-10-01	38.2988562820777
2014-01-01	38.3134937796197
2014-04-01	40.2168819359235
2014-07-01	39.3100625242350
2014-10-01	39.3958637453362
2015-01-01	39.2567351955114
2015-04-01	39.1478373989203
2015-07-01	39.1993529990380
2015-10-01	39.6185448501955
2016-01-01	39.9530152140242
2016-04-01	39.6703758746875
2016-07-01	39.1516163811893
2016-10-01	40.2272093732010
2017-01-01	40.9512777964274
2017-04-01	41.7659403458378
2017-07-01	42.1103468446681
2017-10-01	41.4606311464805
2018-01-01	41.7245189364931
2018-04-01	40.9095929871980