Quarter	Percent, Seasonally Adjusted
1999-01-01	69.4787177265980
1999-04-01	69.2933298996588
1999-07-01	69.5351124003838
1999-10-01	69.6489100357932
2000-01-01	69.8308324308488
2000-04-01	69.7692987424159
2000-07-01	69.8585675941482
2000-10-01	70.0244200446368
2001-01-01	70.3177909717016
2001-04-01	70.5978318262494
2001-07-01	70.5049541772042
2001-10-01	70.3438177411300
2002-01-01	69.9572190008252
2002-04-01	69.7420822295250
2002-07-01	69.8011157518084
2002-10-01	69.9587525485260
2003-01-01	69.9060318368444
2003-04-01	70.0525161665700
2003-07-01	70.1715029687494
2003-10-01	69.9864771498770
2004-01-01	69.7752060867723
2004-04-01	69.8886739032762
2004-07-01	69.7234834990027
2004-10-01	69.3921835229132
2005-01-01	69.2119906287033
2005-04-01	68.8514154741394
2005-07-01	68.7204628646516
2005-10-01	68.9707653457671
2006-01-01	68.7555947071272
2006-04-01	68.7478898692340
2006-07-01	68.6471758538450
2006-10-01	68.3754628285953
2007-01-01	68.2492771984636
2007-04-01	68.1748640713021
2007-07-01	68.2679388833436
2007-10-01	68.5769321547497
2008-01-01	68.7649278214366
2008-04-01	68.7907198777990
2008-07-01	69.0233025092984
2008-10-01	68.7621467785044
2009-01-01	68.3349822184585
2009-04-01	68.3508863952911
2009-07-01	68.4715911963692
2009-10-01	68.5376909918028
2010-01-01	68.4738995719674
2010-04-01	68.6657863821923
2010-07-01	68.7257633996178
2010-10-01	68.8128051271608
2011-01-01	68.4789308275608
2011-04-01	68.6612078890291
2011-07-01	68.7188205336262
2011-10-01	69.0216477844455
2012-01-01	69.3173116659048
2012-04-01	69.4092615786610
2012-07-01	69.5606747177475
2012-10-01	69.4531739850943
2013-01-01	69.9313675775027
2013-04-01	69.7799300036842
2013-07-01	69.8396517752108
2013-10-01	69.8621076937062
2014-01-01	69.9674381787847
2014-04-01	70.1259451525591
2014-07-01	70.3434568650143
2014-10-01	70.6182952893538
2015-01-01	70.6519511268423
2015-04-01	70.6193126828452
2015-07-01	71.0082592756428
2015-10-01	71.3805825881108
2016-01-01	71.5092764343669
2016-04-01	71.9191932301742
2016-07-01	71.9811923304946
2016-10-01	72.0195603719478
2017-01-01	72.0539656781902
2017-04-01	72.0403170776992
2017-07-01	72.1671615971296
2017-10-01	72.1223080031286
2018-01-01	72.1860770276223
2018-04-01	72.0399149653362