Quarter	Percent, Seasonally Adjusted
1999-01-01	44.6031520325405
1999-04-01	44.4972723495928
1999-07-01	44.7327611783635
1999-10-01	44.8036110333979
2000-01-01	44.4235638167376
2000-04-01	44.5659938489224
2000-07-01	43.6861424027512
2000-10-01	44.2367144076498
2001-01-01	43.9313892791444
2001-04-01	44.6303453641300
2001-07-01	43.4986235663407
2001-10-01	43.6816028143174
2002-01-01	43.2016949570670
2002-04-01	43.4433282308871
2002-07-01	44.5128741813429
2002-10-01	45.2002657317516
2003-01-01	45.0770892981216
2003-04-01	45.1140624482462
2003-07-01	45.9837168468382
2003-10-01	44.4572014675450
2004-01-01	43.2370568929453
2004-04-01	42.4711029236436
2004-07-01	41.7605479507005
2004-10-01	43.0906090465770
2005-01-01	42.1877907954374
2005-04-01	42.5386826523092
2005-07-01	41.6369860295589
2005-10-01	40.9707321418455
2006-01-01	41.1469863808292
2006-04-01	40.2680724160054
2006-07-01	41.6804416065498
2006-10-01	41.9662698279111
2007-01-01	41.7323493116414
2007-04-01	40.6276400338693
2007-07-01	40.7878491071807
2007-10-01	41.4485737644938
2008-01-01	41.1268692103532
2008-04-01	41.0666103171127
2008-07-01	40.1786808114783
2008-10-01	39.9699142490471
2009-01-01	40.6577991247265
2009-04-01	40.6020145166831
2009-07-01	39.7937304249429
2009-10-01	40.1167548887438
2010-01-01	40.3231292046047
2010-04-01	40.2204473687340
2010-07-01	41.6133711275995
2010-10-01	40.3269282193269
2011-01-01	41.8176269182575
2011-04-01	41.9801747756861
2011-07-01	41.5794629744344
2011-10-01	40.5909150287507
2012-01-01	40.0455525146539
2012-04-01	41.9927235584899
2012-07-01	41.5860792460254
2012-10-01	41.1955739836721
2013-01-01	42.1749888707862
2013-04-01	41.5979850768877
2013-07-01	41.0226819940127
2013-10-01	41.7394699038571
2014-01-01	40.7037239094664
2014-04-01	40.0664526507358
2014-07-01	41.3793293460262
2014-10-01	41.5614122830639
2015-01-01	41.9391218174727
2015-04-01	40.7241051378498
2015-07-01	40.4923159435539
2015-10-01	41.2110670068633
2016-01-01	41.4775868518458
2016-04-01	40.6867952012267
2016-07-01	41.1811265454617
2016-10-01	39.6396617182070
2017-01-01	38.9461492434447
2017-04-01	39.6128360855639
2017-07-01	38.1362532063683
2017-10-01	37.5566787892180
2018-01-01	37.9374624575924
2018-04-01	38.3730380642378