Quarter	Percent, Seasonally Adjusted
2000-01-01	65.2321045604258
2000-04-01	65.9244701386010
2000-07-01	66.4142022846600
2000-10-01	66.7977430593976
2001-01-01	67.0984973525274
2001-04-01	67.1404561029470
2001-07-01	67.2068629700592
2001-10-01	67.3986813427006
2002-01-01	67.4567485889652
2002-04-01	67.6723383810016
2002-07-01	67.6931936020250
2002-10-01	67.5574843423850
2003-01-01	67.2182807054052
2003-04-01	66.8954103526386
2003-07-01	66.8045991538231
2003-10-01	66.4712900666544
2004-01-01	66.4285549994196
2004-04-01	66.4112760323098
2004-07-01	66.4892828683877
2004-10-01	66.2650475320395
2005-01-01	66.2683606272966
2005-04-01	66.4040599494811
2005-07-01	66.4876716439106
2005-10-01	66.6230766313647
2006-01-01	67.0640793608736
2006-04-01	67.2777432903288
2006-07-01	67.5231966053356
2006-10-01	67.9729491174864
2007-01-01	68.4382547514826
2007-04-01	68.8628372773506
2007-07-01	69.1121283879060
2007-10-01	69.0489231735251
2008-01-01	69.4782937590521
2008-04-01	69.7341823225246
2008-07-01	69.9428910444162
2008-10-01	70.2022589264545
2009-01-01	70.4178568994624
2009-04-01	69.7758393797020
2009-07-01	69.2393844624002
2009-10-01	69.1225540139220
2010-01-01	67.4240228277898
2010-04-01	67.3872246376521
2010-07-01	67.2941222165682
2010-10-01	67.2491832058235
2011-01-01	66.5656255455704
2011-04-01	66.3213856799184
2011-07-01	66.4001747797345
2011-10-01	66.6809758261867
2012-01-01	66.6591969655790
2012-04-01	66.4802426486364
2012-07-01	66.4267081241317
2012-10-01	66.1294375547119
2013-01-01	65.8098694893532
2013-04-01	65.4915387507246
2013-07-01	65.2548531477702
2013-10-01	65.0901870592094
2014-01-01	64.6809942330960
2014-04-01	64.6571261793283
2014-07-01	64.8986653161766
2014-10-01	65.1975617831875
2015-01-01	65.3470689658386
2015-04-01	65.4216401496249
2015-07-01	65.4088792301907
2015-10-01	65.3436989347401
2016-01-01	65.4424717630275
2016-04-01	65.7731952248683
2016-07-01	65.9693448264189
2016-10-01	66.0682570362672
2017-01-01	66.2958533973876
2017-04-01	66.5134192555248
2017-07-01	66.8704344674293
2017-10-01	66.9663560174492
2018-01-01	67.2488277535042
2018-04-01	67.6355697668348