Quarter	Percent, Seasonally Adjusted
1999-01-01	65.1009321179099
1999-04-01	65.0488514149248
1999-07-01	65.2210488709197
1999-10-01	65.3791856471727
2000-01-01	65.5274751538781
2000-04-01	65.6758056978993
2000-07-01	65.9427961801108
2000-10-01	66.1678250990406
2001-01-01	65.1166419456100
2001-04-01	65.4176289188452
2001-07-01	65.5272331215851
2001-10-01	65.7393455627177
2002-01-01	65.9513845187440
2002-04-01	66.0941902940266
2002-07-01	66.2900960058940
2002-10-01	66.4098662843584
2003-01-01	66.6629943954802
2003-04-01	66.8330757502317
2003-07-01	67.0893604731458
2003-10-01	67.2665763798543
2004-01-01	67.1482860687963
2004-04-01	67.2130931721289
2004-07-01	67.3806343464218
2004-10-01	67.5490626917829
2005-01-01	67.9131168813623
2005-04-01	68.1118779290042
2005-07-01	68.1114379944254
2005-10-01	68.2816084611015
2006-01-01	68.3331154769494
2006-04-01	68.3229446614919
2006-07-01	68.4341151676916
2006-10-01	68.3738749333865
2007-01-01	68.3720976311109
2007-04-01	68.5730041369737
2007-07-01	68.5936757876328
2007-10-01	68.5812959111419
2008-01-01	68.7674161847205
2008-04-01	68.7915654942274
2008-07-01	68.6903961606896
2008-10-01	68.4968202760919
2009-01-01	68.4727603435497
2009-04-01	67.9975613273284
2009-07-01	67.3645794541693
2009-10-01	67.4526468844301
2010-01-01	67.4217624052535
2010-04-01	67.5877403348470
2010-07-01	67.2579139408669
2010-10-01	67.0850072142270
2011-01-01	66.9680206476510
2011-04-01	66.7740609396107
2011-07-01	66.7860521465512
2011-10-01	66.7519223659564
2012-01-01	66.4362322499370
2012-04-01	66.5239129413767
2012-07-01	66.3182632227519
2012-10-01	66.0254867004165
2013-01-01	66.0320408433178
2013-04-01	65.5543707095410
2013-07-01	65.5698647989279
2013-10-01	65.3379649566634
2014-01-01	64.9371200656636
2014-04-01	65.0793462612781
2014-07-01	64.9811855889260
2014-10-01	65.1587466777042
2015-01-01	64.9867823901601
2015-04-01	64.9639360312178
2015-07-01	64.7618353843370
2015-10-01	64.5860931228890
2016-01-01	64.5912981107761
2016-04-01	64.3355365836931
2016-07-01	64.1346811359356
2016-10-01	64.0401287990846
2017-01-01	63.9940547785230
2017-04-01	63.8523422075697
2017-07-01	63.9135219711557
2017-10-01	63.8133716348636
2018-01-01	63.7066966358336
2018-04-01	63.7800931350444
2018-07-01	63.7336126877992