Quarter	Percent, Seasonally Adjusted
1998-01-01	47.6211044915273
1998-04-01	48.3574956387357
1998-07-01	49.6756037531899
1998-10-01	49.1536944411280
1999-01-01	49.5714627425085
1999-04-01	48.6634767678665
1999-07-01	49.2624336109183
1999-10-01	47.6930146617086
2000-01-01	47.8796346545104
2000-04-01	49.5776586927815
2000-07-01	48.3037691770598
2000-10-01	48.3309068820212
2001-01-01	47.9911791152824
2001-04-01	47.7561786190218
2001-07-01	46.8351361239176
2001-10-01	47.6041361608292
2002-01-01	47.1476095798267
2002-04-01	46.8958050011750
2002-07-01	46.8509008636791
2002-10-01	47.5955910412357
2003-01-01	49.3917674804252
2003-04-01	51.0863230994283
2003-07-01	51.4797185802486
2003-10-01	52.3088661718750
2004-01-01	52.6057753619067
2004-04-01	52.2850588703059
2004-07-01	52.3347956366518
2004-10-01	53.4961392638465
2005-01-01	53.9413440879688
2005-04-01	53.2300152784107
2005-07-01	54.3821700037990
2005-10-01	54.4444883916960
2006-01-01	54.4180822056029
2006-04-01	53.5974782358282
2006-07-01	54.8022883209792
2006-10-01	55.1119097814540
2007-01-01	54.7845618150171
2007-04-01	55.7450350874513
2007-07-01	54.9565331173087
2007-10-01	55.7330196535187
2008-01-01	55.0178639614625
2008-04-01	55.7375721115606
2008-07-01	57.6284163672914
2008-10-01	57.1979119651500
2009-01-01	58.7915672087488
2009-04-01	59.1456714633554
2009-07-01	60.8965417695310
2009-10-01	60.7047243297224
2010-01-01	61.3355301799747
2010-04-01	61.7119623116961
2010-07-01	62.6980601323213
2010-10-01	62.4086809451839
2011-01-01	59.9155913265752
2011-04-01	60.3539137040863
2011-07-01	58.7245387397798
2011-10-01	59.5164369212276
2012-01-01	61.0017945537741
2012-04-01	60.3799824036802
2012-07-01	59.5339214227810
2012-10-01	62.3572969681390
2013-01-01	63.3677449903269
2013-04-01	63.6146062143222
2013-07-01	63.0507264881138
2013-10-01	65.1058282780922
2014-01-01	65.0507072350778
2014-04-01	65.5098522889629
2014-07-01	64.1130269754898
2014-10-01	66.3330857219692
2015-01-01	66.2116906858227
2015-04-01	66.4252315364398
2015-07-01	65.8633519603934
2015-10-01	64.6455090582757
2016-01-01	65.7523769673321
2016-04-01	64.6369968546514
2016-07-01	64.9842353395330
2016-10-01	64.5274123930236
2017-01-01	64.2493080848499
2017-04-01	64.7922520070548
2017-07-01	64.6141557860752
2017-10-01	64.0631993202772
2018-01-01	63.7398663666574
2018-04-01	64.1545841408535