Quarter	Percent, Seasonally Adjusted
1998-01-01	59.9708217836222
1998-04-01	59.6147383315060
1998-07-01	59.6021189569879
1998-10-01	59.3614188554383
1999-01-01	57.9771000405084
1999-04-01	59.5374162644935
1999-07-01	59.3491669073460
1999-10-01	59.3334743748598
2000-01-01	59.2645531157612
2000-04-01	58.9998292577270
2000-07-01	59.2012298699284
2000-10-01	60.4373352067782
2001-01-01	59.5259611667763
2001-04-01	59.9883529925585
2001-07-01	60.0909723644500
2001-10-01	59.8824794756519
2002-01-01	59.5598062190206
2002-04-01	59.0138939982688
2002-07-01	58.3710636398127
2002-10-01	57.8636705974617
2003-01-01	57.8105926336358
2003-04-01	57.1211184577366
2003-07-01	56.5963215604742
2003-10-01	55.8906374799468
2004-01-01	59.0002568376732
2004-04-01	58.3121717500824
2004-07-01	58.2173669971406
2004-10-01	57.5908874201698
2005-01-01	57.2783489005457
2005-04-01	56.4628461565460
2005-07-01	55.9019918818511
2005-10-01	55.9101383074592
2006-01-01	55.8781900829766
2006-04-01	55.7313966829286
2006-07-01	55.7458521175776
2006-10-01	55.9601371751762
2007-01-01	56.1137471788053
2007-04-01	56.1554189157526
2007-07-01	55.6834025351181
2007-10-01	55.4540294201265
2008-01-01	55.6586798694115
2008-04-01	55.5180665136213
2008-07-01	55.6670104275198
2008-10-01	55.5382348112155
2009-01-01	56.0748121328165
2009-04-01	55.7155081656777
2009-07-01	55.1671752074766
2009-10-01	55.4663926949316
2010-01-01	54.8100255670153
2010-04-01	54.9580732146809
2010-07-01	54.7137253826126
2010-10-01	54.7774203839454
2011-01-01	55.6917688271870
2011-04-01	55.9035124487854
2011-07-01	57.6958204230829
2011-10-01	58.3306470147555
2012-01-01	58.2431132386267
2012-04-01	58.1526268123345
2012-07-01	57.7743576748819
2012-10-01	57.3296907718368
2013-01-01	57.8741610696016
2013-04-01	57.3783954130673
2013-07-01	57.2080369427557
2013-10-01	57.7892446089542
2014-01-01	57.8213246984868
2014-04-01	58.5992794958041
2014-07-01	59.3334091285990
2014-10-01	59.8194545956475
2015-01-01	59.5625926322600
2015-04-01	59.0347920466678
2015-07-01	58.0024881430773
2015-10-01	56.9505159108832
2016-01-01	56.0783874701658
2016-04-01	55.7898820961577
2016-07-01	54.4175587029621
2016-10-01	54.2449450853360
2017-01-01	53.8418639945985
2017-04-01	53.6260321149869
2017-07-01	52.6889304875207
2017-10-01	52.8819391039559
2018-01-01	52.6788760455906
2018-04-01	51.4939960561205