Quarter	Percent, Seasonally Adjusted
2000-01-01	78.0036301477007
2000-04-01	77.9400009853200
2000-07-01	77.3255252576586
2000-10-01	77.2469290158854
2001-01-01	76.6168406992759
2001-04-01	75.5749019164950
2001-07-01	75.0402204851577
2001-10-01	74.2312020164481
2002-01-01	73.4393873089026
2002-04-01	73.0508882543038
2002-07-01	72.8426422184448
2002-10-01	72.6716475844090
2003-01-01	72.9103520037531
2003-04-01	72.8931787491287
2003-07-01	73.0693846889060
2003-10-01	72.9655769063046
2004-01-01	73.3326627332189
2004-04-01	73.7069284162729
2004-07-01	73.8463218608688
2004-10-01	74.7124072124550
2005-01-01	75.5215679836727
2005-04-01	75.7762112240942
2005-07-01	76.3616952075564
2005-10-01	76.6665071061182
2006-01-01	76.8450028004934
2006-04-01	77.8157962015924
2006-07-01	78.7792602030503
2006-10-01	79.7233401258311
2007-01-01	80.3545945776261
2007-04-01	80.8104884787743
2007-07-01	81.0500043694507
2007-10-01	82.3130483811184
2008-01-01	83.2937096190305
2008-04-01	83.7037501527022
2008-07-01	84.4303254890388
2008-10-01	84.4622903254289
2009-01-01	84.1796673221175
2009-04-01	84.0368088505816
2009-07-01	83.7184018566455
2009-10-01	82.8753088086493
2010-01-01	82.2250233910550
2010-04-01	82.5482516987938
2010-07-01	82.5908879842680
2010-10-01	82.7606492248690
2011-01-01	82.9656202364228
2011-04-01	82.9597494859966
2011-07-01	82.9401006496858
2011-10-01	83.0636840758136
2012-01-01	83.0026788897884
2012-04-01	82.9716628736221
2012-07-01	82.7777081452033
2012-10-01	82.7589939321134
2013-01-01	82.4710096921180
2013-04-01	82.7116454882847
2013-07-01	82.7405346568409
2013-10-01	82.7518925315945
2014-01-01	83.2190557691375
2014-04-01	83.7710552456010
2014-07-01	84.3528385532142
2014-10-01	84.4472817465526
2015-01-01	84.7252121355423
2015-04-01	84.5358408436935
2015-07-01	84.9571557300976
2015-10-01	85.5433392839284
2016-01-01	85.6756878719959
2016-04-01	85.9927355071530
2016-07-01	86.2079402498657
2016-10-01	86.5397322253821
2017-01-01	87.0752660372558
2017-04-01	87.2985350903251
2017-07-01	87.5213242315227
2017-10-01	87.5017965443087
2018-01-01	87.8065914317112
2018-04-01	88.2086889038737