Quarter	Percent, Seasonally Adjusted
1999-04-01	58.9440400513817
1999-07-01	59.2593806324758
1999-10-01	58.4982556812624
2000-01-01	57.8100674623768
2000-04-01	57.3936616536500
2000-07-01	56.8658297749382
2000-10-01	56.4660405085937
2001-01-01	56.3290736855490
2001-04-01	56.1102147986460
2001-07-01	56.1376492771842
2001-10-01	55.5852551749860
2002-01-01	55.2158937138639
2002-04-01	54.3758748706713
2002-07-01	54.2815806130753
2002-10-01	53.6692583732057
2003-01-01	53.6314009375185
2003-04-01	52.7942995112184
2003-07-01	52.3802561553307
2003-10-01	52.2653251134117
2004-01-01	52.3885258226823
2004-04-01	51.7557734894021
2004-07-01	52.5696789332112
2004-10-01	51.8118625719332
2005-01-01	51.2765957446809
2005-04-01	50.9777878256938
2005-07-01	51.2048362153803
2005-10-01	50.9599238777566
2006-01-01	50.4395237565372
2006-04-01	49.9252988047809
2006-07-01	49.6002426113807
2006-10-01	49.4928671559330
2007-01-01	49.7848902529252
2007-04-01	50.0983230458295
2007-07-01	50.3773739135173
2007-10-01	49.9428198006862
2008-01-01	50.0326140131543
2008-04-01	50.0271296798698
2008-07-01	49.9661219069301
2008-10-01	49.2479575826435
2009-01-01	49.4447296603529
2009-04-01	49.2443868739206
2009-07-01	49.4796160483175
2009-10-01	49.2649434571890
2010-01-01	48.7442185651285
2010-04-01	49.4192611711566
2010-07-01	48.2851162041758
2010-10-01	49.1061138063202
2011-01-01	48.8411304999465
2011-04-01	49.0502524645347
2011-07-01	48.4345731870484
2011-10-01	48.6734693877551
2012-01-01	47.5583463590794
2012-04-01	47.0141180288852
2012-07-01	47.3092652276359
2012-10-01	46.2047098994607
2013-01-01	45.5166616957241
2013-04-01	44.9301694915254
2013-07-01	44.5434841506367
2013-10-01	43.9545000135095
2014-01-01	43.6633396277313
2014-04-01	43.5904341268986
2014-07-01	43.9519158527423
2014-10-01	43.1277085228185
2015-01-01	42.6354522184300
2015-04-01	42.8909259997343
2015-07-01	41.9857630527402
2015-10-01	41.6537154597898
2016-01-01	41.1200000000000
2016-04-01	40.3388768503773
2016-07-01	41.0978111287098
2016-10-01	40.5136146599561
2017-01-01	39.6838837143664
2017-04-01	39.6198979591837
2017-07-01	38.9103084415584
2017-10-01	38.1957579884492
2018-01-01	37.7315917466844
2018-04-01	37.6912724916513