Quarter	Percent, Seasonally Adjusted
2000-01-01	72.5418712679263
2000-04-01	73.8426134114889
2000-07-01	72.4094258856408
2000-10-01	72.8921887904679
2001-01-01	73.3365739478396
2001-04-01	71.5158545643994
2001-07-01	75.1333419754646
2001-10-01	74.1848261770941
2002-01-01	73.5487710083368
2002-04-01	73.2773692472502
2002-07-01	72.9718861682411
2002-10-01	74.3365812557958
2003-01-01	74.7617567419847
2003-04-01	73.9242037316084
2003-07-01	76.5282273096021
2003-10-01	74.9499758280330
2004-01-01	76.4174033371936
2004-04-01	75.2848459122994
2004-07-01	75.8469172378360
2004-10-01	75.8663007988123
2005-01-01	77.3716533165548
2005-04-01	78.3285348734916
2005-07-01	76.0886674068498
2005-10-01	78.6121877094571
2006-01-01	81.5063036457943
2006-04-01	81.2217186766553
2006-07-01	80.2243647605039
2006-10-01	80.7421304015180
2007-01-01	79.2062567178861
2007-04-01	80.2265357394282
2007-07-01	81.1682719490436
2007-10-01	79.9710535447224
2008-01-01	78.7810013662659
2008-04-01	79.7426273821539
2008-07-01	81.2507145075731
2008-10-01	78.9183258965707
2009-01-01	76.9886278545048
2009-04-01	76.2233449887524
2009-07-01	73.8011986443777
2009-10-01	75.6236453028211
2010-01-01	75.3729506639905
2010-04-01	74.2787385329914
2010-07-01	72.7579693641443
2010-10-01	73.5796459344252
2011-01-01	72.7503638220425
2011-04-01	73.8012384069998
2011-07-01	77.2594198003699
2011-10-01	75.9181485491132
2012-01-01	74.5893798606940
2012-04-01	75.9093830454088
2012-07-01	76.0649282957839
2012-10-01	76.8202883200334
2013-01-01	75.5258883332732
2013-04-01	74.6224113624738
2013-07-01	76.2307050138194
2013-10-01	78.0545654391294
2014-01-01	75.0197723695869
2014-04-01	76.2304267467778
2014-07-01	76.3337910004322
2014-10-01	76.6784203400376
2015-01-01	77.0614451052764
2015-04-01	77.6843421988523
2015-07-01	78.6939514831052
2015-10-01	79.3456568466064
2016-01-01	78.0403542139840
2016-04-01	78.3363328694754
2016-07-01	74.8960796030961
2016-10-01	77.4181346945542
2017-01-01	79.7506807915300
2017-04-01	78.6266261877639
2017-07-01	78.3591424547556
2017-10-01	80.1663675547444
2018-01-01	78.4278915928150
2018-04-01	78.0560004569460