Quarter	Percent, Seasonally Adjusted
1999-01-01	71.3220010898766
1999-04-01	70.7168545001363
1999-07-01	70.9437325358168
1999-10-01	71.0414826239374
2000-01-01	71.0419245830865
2000-04-01	70.8961582223321
2000-07-01	70.9976263981635
2000-10-01	70.9697451832262
2001-01-01	71.3682650194977
2001-04-01	71.8552156037502
2001-07-01	71.6803575394252
2001-10-01	71.6449203195499
2002-01-01	71.3173208231665
2002-04-01	70.8382701278289
2002-07-01	70.8473680669155
2002-10-01	71.1600882037059
2003-01-01	70.9334268664254
2003-04-01	71.1728696816060
2003-07-01	71.1931273886904
2003-10-01	70.8976357138954
2004-01-01	71.0667009111572
2004-04-01	71.3465878423537
2004-07-01	71.2363502910552
2004-10-01	71.1367191975024
2005-01-01	71.0822019598304
2005-04-01	71.1081341304440
2005-07-01	71.1646840239374
2005-10-01	71.5844068208816
2006-01-01	71.5636508056115
2006-04-01	71.3519991394852
2006-07-01	70.9781662247115
2006-10-01	70.6277173945888
2007-01-01	70.4600466555089
2007-04-01	70.4396829224319
2007-07-01	70.8215119236777
2007-10-01	70.9183164980347
2008-01-01	71.0344738587962
2008-04-01	71.1874067829855
2008-07-01	71.2931534021906
2008-10-01	71.3152525338909
2009-01-01	71.1595628957940
2009-04-01	71.0087266703014
2009-07-01	71.1074570799533
2009-10-01	70.9639796913365
2010-01-01	70.6587991030919
2010-04-01	70.8340227755198
2010-07-01	70.7385417980272
2010-10-01	70.8428004783467
2011-01-01	70.8116295218618
2011-04-01	71.2695565029862
2011-07-01	71.0445029702933
2011-10-01	71.2829483728321
2012-01-01	71.5899839838518
2012-04-01	71.4286615787696
2012-07-01	71.4374302284829
2012-10-01	71.3570888333436
2013-01-01	71.6994994755494
2013-04-01	71.3920394893202
2013-07-01	71.0028252350980
2013-10-01	70.7857289355269
2014-01-01	71.1945833233010
2014-04-01	71.3049392476480
2014-07-01	71.4634241546907
2014-10-01	71.5396161063649
2015-01-01	71.2320013627852
2015-04-01	70.9310638470568
2015-07-01	71.0051340094150
2015-10-01	71.0516247519254
2016-01-01	71.0931497602620
2016-04-01	71.4603244733570
2016-07-01	71.4319265282612
2016-10-01	71.4933603214217
2017-01-01	71.3719943895048
2017-04-01	71.2139973697850
2017-07-01	71.0026305701714
2017-10-01	70.7783159994420
2018-01-01	71.0029043232906
2018-04-01	71.2738988890697