Quarter	Percent, Seasonally Adjusted
1998-01-01	43.4120744936621
1998-04-01	43.5738388263239
1998-07-01	43.4883844980468
1998-10-01	43.3308141204294
1999-01-01	43.0970879896012
1999-04-01	43.1866356521241
1999-07-01	43.2852780109506
1999-10-01	43.3711814348342
2000-01-01	43.0253513252122
2000-04-01	42.8923908909804
2000-07-01	42.7467392295370
2000-10-01	42.3336396033466
2001-01-01	42.3279128198894
2001-04-01	41.9445059985130
2001-07-01	42.3158143880493
2001-10-01	42.6945701500598
2002-01-01	42.5373747934510
2002-04-01	43.0327453357081
2002-07-01	43.1795262626800
2002-10-01	43.0578571545314
2003-01-01	43.8962538360900
2003-04-01	44.4231072928375
2003-07-01	44.4437119685197
2003-10-01	44.8058226832835
2004-01-01	43.4778495936188
2004-04-01	43.8028106091313
2004-07-01	44.1170856374999
2004-10-01	44.3647547254844
2005-01-01	44.2638586989781
2005-04-01	44.1834705351277
2005-07-01	44.1268023836411
2005-10-01	44.6019289334376
2006-01-01	44.4399718669430
2006-04-01	44.8465097522773
2006-07-01	45.2005347846531
2006-10-01	45.3894115831816
2007-01-01	46.0348564344685
2007-04-01	46.0926057206827
2007-07-01	46.4096135168114
2007-10-01	46.3180827680744
2008-01-01	46.4426525455162
2008-04-01	46.5639316839611
2008-07-01	46.9962954918896
2008-10-01	47.3610247768180
2009-01-01	47.6783493906412
2009-04-01	48.4888278004807
2009-07-01	48.6262031273039
2009-10-01	48.8658376585469
2010-01-01	49.3328411842768
2010-04-01	49.3359906701574
2010-07-01	49.5522312967113
2010-10-01	49.8438209887037
2011-01-01	49.8783193095126
2011-04-01	49.9584221209870
2011-07-01	50.6157914696292
2011-10-01	51.6645676116870
2012-01-01	52.4802334975494
2012-04-01	53.5807102107242
2012-07-01	53.7698077306163
2012-10-01	54.4899662438119
2013-01-01	55.2669517831534
2013-04-01	55.7225394872694
2013-07-01	56.9579758929574
2013-10-01	58.4472955300315
2014-01-01	58.8724110048327
2014-04-01	59.7470565061037
2014-07-01	60.7796688133079
2014-10-01	61.5346070960251
2015-01-01	62.2297357420830
2015-04-01	63.2600083205214
2015-07-01	63.7289420688261
2015-10-01	63.9936971363470
2016-01-01	65.2960921704512
2016-04-01	65.7089243076585
2016-07-01	66.0971240073927
2016-10-01	66.4431445650880
2017-01-01	66.6261399520136
2017-04-01	66.8357751063421
2017-07-01	67.2027868478635
2017-10-01	67.5076975469572
2018-01-01	68.0349696082054
2018-04-01	68.6468514155975