Quarter	Percent, Seasonally Adjusted
2001-01-01	73.0205744203246
2001-04-01	72.7858367334027
2001-07-01	72.9358939601395
2001-10-01	72.8593945871966
2002-01-01	72.7184150964031
2002-04-01	72.5040430767346
2002-07-01	72.4381879418391
2002-10-01	72.5005519199833
2003-01-01	72.1334163624583
2003-04-01	72.3712763401416
2003-07-01	72.4468343900206
2003-10-01	72.4182924423429
2004-01-01	72.4841673568054
2004-04-01	72.1360094946966
2004-07-01	71.9873681692634
2004-10-01	71.8230145031292
2005-01-01	71.8544666982956
2005-04-01	73.9817317935418
2005-07-01	73.6425670809569
2005-10-01	73.6993449170265
2006-01-01	73.5653403294986
2006-04-01	73.7870555877508
2006-07-01	73.8821063683567
2006-10-01	74.0038186286022
2007-01-01	74.2085749112706
2007-04-01	73.7748941970446
2007-07-01	74.0586915557800
2007-10-01	73.9260136601107
2008-01-01	74.1388025624581
2008-04-01	74.4090264828405
2008-07-01	74.1182350980052
2008-10-01	73.8746892137796
2009-01-01	73.5565464388679
2009-04-01	73.6023555703779
2009-07-01	73.3673515490006
2009-10-01	73.5985638954272
2010-01-01	73.6907681410983
2010-04-01	73.8839019502926
2010-07-01	74.0471398535193
2010-10-01	73.9128607740914
2011-01-01	73.9694557782359
2011-04-01	74.0675915240756
2011-07-01	73.8778061832013
2011-10-01	73.8295647955224
2012-01-01	73.6569944877230
2012-04-01	73.8492324188785
2012-07-01	74.0611329538454
2012-10-01	74.1761852092340
2013-01-01	74.2703604557856
2013-04-01	74.2005969561719
2013-07-01	74.2292600865458
2013-10-01	74.3147942389164
2014-01-01	74.5006988433026
2014-04-01	74.6301445166359
2014-07-01	74.9281250076534
2014-10-01	74.8503273466740
2015-01-01	74.6762361575658
2015-04-01	74.4341242218612
2015-07-01	74.2698312635956
2015-10-01	74.3588691463229
2016-01-01	74.4408586116312
2016-04-01	74.5138900070805
2016-07-01	74.2100179269554
2016-10-01	74.6064385367380
2017-01-01	74.8048482563916
2017-04-01	75.1019241524059
2017-07-01	75.4445300833014
2017-10-01	75.2430061537941
2018-01-01	75.3061780958203
2018-04-01	75.2055106499440