Quarter	Percent, Seasonally Adjusted
1998-01-01	91.6843897957055
1998-04-01	91.4270785577539
1998-07-01	91.4079169328466
1998-10-01	90.8635879877698
1999-01-01	90.1862804114256
1999-04-01	89.5186301905441
1999-07-01	89.3084841348811
1999-10-01	89.0589168719291
2000-01-01	88.9856499026398
2000-04-01	89.1766324679780
2000-07-01	89.2400278053802
2000-10-01	89.7065871278475
2001-01-01	89.9565183901912
2001-04-01	89.5091307511319
2001-07-01	89.4937263621412
2001-10-01	89.8101377044748
2002-01-01	90.2844256356048
2002-04-01	90.2563638176780
2002-07-01	90.2078379797209
2002-10-01	90.0777735925674
2003-01-01	90.1060710461588
2003-04-01	89.7674981728364
2003-07-01	89.5693277961535
2003-10-01	89.4246859314691
2004-01-01	89.0457929558340
2004-04-01	89.0575102025770
2004-07-01	89.3175403317461
2004-10-01	89.5084381959588
2005-01-01	89.5548408971860
2005-04-01	89.9342601123740
2005-07-01	89.9400754134894
2005-10-01	89.9100655424904
2006-01-01	89.9122750176341
2006-04-01	90.3504945407549
2006-07-01	90.4384867383306
2006-10-01	90.7401479151604
2007-01-01	91.3458663297548
2007-04-01	91.6428732082007
2007-07-01	91.7384236966341
2007-10-01	92.1643417926954
2008-01-01	92.2782189701014
2008-04-01	92.0417793467385
2008-07-01	92.0646518614035
2008-10-01	92.0329412609004
2009-01-01	91.1112682379932
2009-04-01	90.3896811922281
2009-07-01	90.1573342604504
2009-10-01	90.3907218872621
2010-01-01	89.8854174107179
2010-04-01	90.6762567873538
2010-07-01	90.8702430775254
2010-10-01	90.6825153506495
2011-01-01	90.5129464801573
2011-04-01	90.9126062973457
2011-07-01	91.0287650303019
2011-10-01	91.1295152310960
2012-01-01	90.8798079507255
2012-04-01	91.0955299554988
2012-07-01	90.8746615838750
2012-10-01	90.7433322769029
2013-01-01	90.9069214804948
2013-04-01	91.4617826563022
2013-07-01	91.0457112136601
2013-10-01	91.1964103606539
2014-01-01	91.3297013765520
2014-04-01	91.3719151561950
2014-07-01	91.6950902227134
2014-10-01	91.4996613918334
2015-01-01	91.4666151664922
2015-04-01	91.8679849097822
2015-07-01	91.9929214777550
2015-10-01	92.2179452389362
2016-01-01	92.5452110596106
2016-04-01	92.5738779711735
2016-07-01	92.7082405608889
2016-10-01	93.0278356644058
2017-01-01	93.2451880464587
2017-04-01	93.4587851842406
2017-07-01	93.9842732367920
2017-10-01	94.1395792878492
2018-01-01	94.0919261936679
2018-04-01	94.6402713651480