Quarter	Percent, Seasonally Adjusted
2001-01-01	75.5221130776971
2001-04-01	75.6468773614017
2001-07-01	75.7472963659955
2001-10-01	75.9320078838949
2002-01-01	75.9280271038396
2002-04-01	75.7304808718824
2002-07-01	75.7789999507333
2002-10-01	75.6022855209072
2003-01-01	75.7127375523694
2003-04-01	75.5973105638071
2003-07-01	75.1667155114728
2003-10-01	75.1949674043479
2004-01-01	75.1724205809279
2004-04-01	74.9906134755096
2004-07-01	75.4265100369552
2004-10-01	75.0170317761972
2005-01-01	74.6303926812115
2005-04-01	76.4729771098747
2005-07-01	75.8973903172595
2005-10-01	76.4694257810304
2006-01-01	76.2899937787205
2006-04-01	76.1965502618675
2006-07-01	76.5144280200894
2006-10-01	76.0991431516409
2007-01-01	76.3658940557984
2007-04-01	76.7118431545536
2007-07-01	76.9061225728800
2007-10-01	77.1195905688679
2008-01-01	76.9907124068808
2008-04-01	76.9995343516486
2008-07-01	76.9772519549846
2008-10-01	76.7752467111591
2009-01-01	76.8132819194084
2009-04-01	76.7516287857467
2009-07-01	75.8886946650541
2009-10-01	76.1056414232683
2010-01-01	76.0088648519301
2010-04-01	76.0939809532965
2010-07-01	76.3828012764368
2010-10-01	76.3905884263273
2011-01-01	77.1044546945948
2011-04-01	77.2585402467367
2011-07-01	77.2994111515322
2011-10-01	77.7269838106607
2012-01-01	77.6020524958275
2012-04-01	77.8925444312504
2012-07-01	78.0601247880418
2012-10-01	78.0581324737590
2013-01-01	78.3800644330780
2013-04-01	78.6457428782211
2013-07-01	78.8675425734055
2013-10-01	79.1742211745773
2014-01-01	78.9963909873639
2014-04-01	79.0889477040939
2014-07-01	79.9521031057525
2014-10-01	79.1659336857709
2015-01-01	79.6355084283649
2015-04-01	79.7666440870680
2015-07-01	80.0300125345051
2015-10-01	80.1879363590143
2016-01-01	80.0932458970339
2016-04-01	80.2556610570101
2016-07-01	80.0622429641475
2016-10-01	80.3474324481678
2017-01-01	80.7152939686630
2017-04-01	80.4458461497288
2017-07-01	80.7881930033724
2017-10-01	80.7130982700548
2018-01-01	80.7116442633376
2018-04-01	81.1201504133530