Quarter	Percent, Seasonally Adjusted
2001-01-01	63.9471386605836
2001-04-01	64.0983749687434
2001-07-01	64.2015005042610
2001-10-01	64.2935151879536
2002-01-01	64.3838884663026
2002-04-01	64.0738935785932
2002-07-01	64.1333112777198
2002-10-01	64.0948649502907
2003-01-01	64.0933461831715
2003-04-01	63.9525375309963
2003-07-01	63.3368956493300
2003-10-01	63.2366930819760
2004-01-01	63.0579813594449
2004-04-01	62.7293139058642
2004-07-01	62.8499924140371
2004-10-01	62.5868781307900
2005-01-01	62.2872690250115
2005-04-01	62.5664061996269
2005-07-01	62.2080506309983
2005-10-01	62.7741598807138
2006-01-01	62.6605166220351
2006-04-01	62.7763475026322
2006-07-01	63.2054911850494
2006-10-01	63.2426961285816
2007-01-01	63.5366387972320
2007-04-01	63.8169096703428
2007-07-01	64.1030932415424
2007-10-01	64.1404728379643
2008-01-01	64.0391454470720
2008-04-01	64.0646896193066
2008-07-01	63.8015385632394
2008-10-01	63.4743503951802
2009-01-01	63.0401793186906
2009-04-01	62.5844256017693
2009-07-01	61.7997607378271
2009-10-01	61.5537326967215
2010-01-01	61.2339877813210
2010-04-01	61.2832650486824
2010-07-01	61.4650645120852
2010-10-01	61.5708873993541
2011-01-01	62.2671179776628
2011-04-01	62.4849553902886
2011-07-01	62.6972854642465
2011-10-01	62.9320990633502
2012-01-01	62.9887169022040
2012-04-01	63.0192854294865
2012-07-01	62.9963466237439
2012-10-01	62.9967796529754
2013-01-01	62.9868882397524
2013-04-01	63.2421932834690
2013-07-01	63.2035755651537
2013-10-01	63.6308081772441
2014-01-01	63.4504845206955
2014-04-01	63.6827711927988
2014-07-01	64.2393075317638
2014-10-01	63.8057884582887
2015-01-01	64.1403921602107
2015-04-01	64.1330188210679
2015-07-01	64.6635756700317
2015-10-01	64.8036573784862
2016-01-01	64.9545214805296
2016-04-01	65.1776173472923
2016-07-01	64.9080246966435
2016-10-01	65.2981211410467
2017-01-01	65.7696552969307
2017-04-01	65.4955656889455
2017-07-01	65.7106827142422
2017-10-01	65.8117016637632
2018-01-01	66.0072328347217
2018-04-01	66.2363586513641