Quarter	Percent, Seasonally Adjusted
1999-04-01	38.8776916292017
1999-07-01	38.1430379053998
1999-10-01	38.4941392963680
2000-01-01	37.8960857863538
2000-04-01	38.2879053809021
2000-07-01	38.1784754012400
2000-10-01	38.8779543607738
2001-01-01	39.5444486446535
2001-04-01	39.9549102543669
2001-07-01	39.9995572719872
2001-10-01	38.7333137796476
2002-01-01	39.3299623632112
2002-04-01	38.9921076324016
2002-07-01	39.0502436559948
2002-10-01	39.5498680264735
2003-01-01	39.7239041055696
2003-04-01	39.9942996623081
2003-07-01	40.3662729430295
2003-10-01	39.6341990839732
2004-01-01	39.0583494371912
2004-04-01	39.2410213266296
2004-07-01	39.8082669909698
2004-10-01	39.7051133502567
2005-01-01	39.4906021829021
2005-04-01	41.0710252461552
2005-07-01	41.1895203440802
2005-10-01	41.3472783293080
2006-01-01	40.8601176163161
2006-04-01	39.7659643503972
2006-07-01	40.1611572409299
2006-10-01	40.3910787012968
2007-01-01	41.2937263287791
2007-04-01	41.5476809776105
2007-07-01	41.2024904952968
2007-10-01	41.5315908921954
2008-01-01	41.7625918669652
2008-04-01	41.4044122261000
2008-07-01	41.9275917552054
2008-10-01	42.2272402428560
2009-01-01	42.0687970787396
2009-04-01	42.7640780437702
2009-07-01	43.0943589512229
2009-10-01	43.5805645301215
2010-01-01	43.8985841263817
2010-04-01	43.6368255996286
2010-07-01	43.8704214415226
2010-10-01	44.8874817264371
2011-01-01	44.6254108411653
2011-04-01	44.1598883949418
2011-07-01	44.3993197617958
2011-10-01	44.1864577335677
2012-01-01	44.5173019939563
2012-04-01	43.9969802982502
2012-07-01	43.7796838447968
2012-10-01	42.5268960720099
2013-01-01	43.1106081236170
2013-04-01	44.1370352495267
2013-07-01	43.4187274547421
2013-10-01	43.8222379077282
2014-01-01	44.4961684482354
2014-04-01	44.0491973194502
2014-07-01	43.5399760736481
2014-10-01	43.6330885342525
2015-01-01	43.2908036461928
2015-04-01	42.5121606937286
2015-07-01	42.8655560433104
2015-10-01	43.2347222076003
2016-01-01	42.8106189825705
2016-04-01	42.1303756742688
2016-07-01	42.4226701715993
2016-10-01	42.5454454652473
2017-01-01	42.4582929362350
2017-04-01	43.0225153513782
2017-07-01	43.5519317939720
2017-10-01	43.3864494714674
2018-01-01	43.4181552906397
2018-04-01	44.2796243013449