Quarter	Percent, Seasonally Adjusted
1999-07-01	54.3099265137217
1999-10-01	55.2243743826863
2000-01-01	55.4549767007589
2000-04-01	55.8433640166785
2000-07-01	56.4590987254787
2000-10-01	56.5402635292979
2001-01-01	56.4694479862602
2001-04-01	56.9833657441449
2001-07-01	56.8324243215664
2001-10-01	57.0662667341584
2002-01-01	57.5082910102102
2002-04-01	57.8889012977851
2002-07-01	58.0026805482176
2002-10-01	57.6566056438074
2003-01-01	56.8683042660658
2003-04-01	56.8007941026871
2003-07-01	56.8676275596545
2003-10-01	57.0699984214926
2004-01-01	58.1870538988815
2004-04-01	58.2150804495530
2004-07-01	58.1507291258315
2004-10-01	58.1734184214972
2005-01-01	58.1514894791803
2005-04-01	58.2911612348762
2005-07-01	58.7808523212533
2005-10-01	59.3839542228609
2006-01-01	59.8540034528361
2006-04-01	60.0618833828661
2006-07-01	60.1225058407065
2006-10-01	60.0490498210635
2007-01-01	60.4049781414264
2007-04-01	60.4668023198240
2007-07-01	60.4967648670797
2007-10-01	60.7173321695933
2008-01-01	60.8242898056487
2008-04-01	60.9373277198292
2008-07-01	60.7280554123859
2008-10-01	60.8105634798830
2009-01-01	60.1542707569805
2009-04-01	59.5427964780964
2009-07-01	59.8437560625245
2009-10-01	59.8704812269660
2010-01-01	60.0689118896001
2010-04-01	60.3820756171512
2010-07-01	60.4656515110728
2010-10-01	60.4962591441190
2011-01-01	60.6253797466518
2011-04-01	61.2198054596590
2011-07-01	60.8391498324287
2011-10-01	61.1239266528452
2012-01-01	61.1902042092380
2012-04-01	61.2470746936734
2012-07-01	61.2845227919397
2012-10-01	61.1001767659521
2013-01-01	61.0939432873533
2013-04-01	61.6180406957232
2013-07-01	62.1437900044322
2013-10-01	62.2918284712311
2014-01-01	62.5598487395313
2014-04-01	62.5405169862110
2014-07-01	62.7046563238553
2014-10-01	62.8340396335287
2015-01-01	63.0910555788320
2015-04-01	62.9919667966033
2015-07-01	63.3831817790587
2015-10-01	63.7492428850617
2016-01-01	63.7547924030283
2016-04-01	63.6821901459121
2016-07-01	63.9613501660875
2016-10-01	64.0065535993240
2017-01-01	64.3757943558054
2017-04-01	64.3455885523428
2017-07-01	64.5313282967019
2017-10-01	64.6035128273188
2018-01-01	64.7972114833261
2018-04-01	65.0654906794409
2018-07-01	65.1244857824481