Quarter	Percent, Seasonally Adjusted
1999-01-01	65.6123284816198
1999-04-01	65.4963603173247
1999-07-01	65.3052307425372
1999-10-01	65.1577659416408
2000-01-01	65.7348733790809
2000-04-01	65.8606347261000
2000-07-01	65.8441922988092
2000-10-01	64.9427539944186
2001-01-01	65.0312191397456
2001-04-01	65.0222326241304
2001-07-01	65.6207951212182
2001-10-01	64.8204737639285
2002-01-01	64.9873820700329
2002-04-01	64.9379499928785
2002-07-01	65.1276094309808
2002-10-01	65.4899836641749
2003-01-01	64.1347606477937
2003-04-01	64.9822246421916
2003-07-01	64.8969181726865
2003-10-01	65.5796625158851
2004-01-01	65.5781073996080
2004-04-01	65.2314030067962
2004-07-01	65.5254513408170
2004-10-01	65.2476525759842
2005-01-01	66.1548501967879
2005-04-01	65.6251452274058
2005-07-01	66.3575788094492
2005-10-01	65.9542908451273
2006-01-01	65.5045961905030
2006-04-01	65.5292638855079
2006-07-01	65.0930125628107
2006-10-01	66.6274490539508
2007-01-01	66.7181436530252
2007-04-01	66.0738147155354
2007-07-01	65.9329021331390
2007-10-01	65.7984602856727
2008-01-01	66.2947094524560
2008-04-01	65.6569225499278
2008-07-01	66.3713356295330
2008-10-01	65.5323077994861
2009-01-01	65.8621296887818
2009-04-01	65.2647105905902
2009-07-01	65.3297120664664
2009-10-01	65.7756536093193
2010-01-01	65.8561942088162
2010-04-01	66.2747306933452
2010-07-01	66.1762497860457
2010-10-01	65.8594750090879
2011-01-01	64.6890746956780
2011-04-01	65.3755392014706
2011-07-01	64.5857631151101
2011-10-01	65.0444283026855
2012-01-01	64.9160456146025
2012-04-01	65.0574176253000
2012-07-01	64.9155032941884
2012-10-01	64.9411153908220
2013-01-01	64.8619519684725
2013-04-01	65.7179835845595
2013-07-01	64.8644141837666
2013-10-01	64.6010639458746
2014-01-01	64.9129468237520
2014-04-01	64.7298849990893
2014-07-01	64.3565574409963
2014-10-01	64.6227835005186
2015-01-01	64.8452643978891
2015-04-01	64.3260080511558
2015-07-01	64.1773059996079
2015-10-01	63.7370586362473
2016-01-01	63.8724984740273
2016-04-01	64.3206210252907
2016-07-01	64.0646526743412
2016-10-01	64.2973540529962
2017-01-01	64.1721919818855
2017-04-01	64.1546497143775
2017-07-01	64.5786462117291
2017-10-01	64.5013581661247
2018-01-01	64.2526691894252
2018-04-01	64.1637115534185