Quarter	Percent, Seasonally Adjusted
1999-01-01	65.9917238093932
1999-04-01	65.9579505289228
1999-07-01	66.2350212262812
1999-10-01	65.7807423975422
2000-01-01	65.8113432590544
2000-04-01	65.6630617683589
2000-07-01	65.1242096842949
2000-10-01	65.5542341949452
2001-01-01	65.7932547619883
2001-04-01	65.2681239930686
2001-07-01	66.1350069863791
2001-10-01	66.5660149923144
2002-01-01	65.3886812582638
2002-04-01	65.7463118091821
2002-07-01	65.4975104510206
2002-10-01	65.4437106549546
2003-01-01	65.2635013115174
2003-04-01	65.5813270913565
2003-07-01	65.7189225713913
2003-10-01	65.4580259943894
2004-01-01	65.7944876317820
2004-04-01	66.0253314710614
2004-07-01	66.6278478093059
2004-10-01	65.6756410517534
2005-01-01	65.9288050111832
2005-04-01	65.4229758004201
2005-07-01	65.3342526887955
2005-10-01	65.9097750020406
2006-01-01	65.8057750126864
2006-04-01	65.7760577004480
2006-07-01	66.0197461554328
2006-10-01	66.1304580214288
2007-01-01	66.3633361539267
2007-04-01	65.8267675583024
2007-07-01	65.3756435749627
2007-10-01	65.2876724759389
2008-01-01	65.5053779171034
2008-04-01	66.0843472689394
2008-07-01	66.1532636736724
2008-10-01	66.2440988871302
2009-01-01	65.8759943768830
2009-04-01	65.6655869457636
2009-07-01	65.4140033242746
2009-10-01	64.3861682409323
2010-01-01	64.6811903675774
2010-04-01	64.6597673636858
2010-07-01	64.0983907987129
2010-10-01	64.0229170358259
2011-01-01	64.1101513675236
2011-04-01	64.0552324459905
2011-07-01	63.9575095227924
2011-10-01	63.6166417315401
2012-01-01	63.5694029924710
2012-04-01	63.5433176247631
2012-07-01	62.7681026941936
2012-10-01	62.7559102244652
2013-01-01	62.6561086201162
2013-04-01	62.4848614007816
2013-07-01	62.3836377810552
2013-10-01	61.9020820479788
2014-01-01	61.7728426327828
2014-04-01	61.8235176544815
2014-07-01	62.4402237829425
2014-10-01	62.7141850078840
2015-01-01	62.4495074475425
2015-04-01	62.0634881901142
2015-07-01	61.8710355716426
2015-10-01	62.4883364371258
2016-01-01	63.5630709161592
2016-04-01	63.8802770907441
2016-07-01	63.4163518031362
2016-10-01	63.3613593081616
2017-01-01	62.3039794132661
2017-04-01	62.1410110014457
2017-07-01	62.3842903100813
2017-10-01	62.2403111522366
2018-01-01	62.2958208612658
2018-04-01	62.7254238072020