Quarter	Percent, Seasonally Adjusted
1998-01-01	41.4340376208850
1998-04-01	41.0240655590101
1998-07-01	40.8552825706853
1998-10-01	40.6135206362455
1999-01-01	40.5454893280430
1999-04-01	40.4349729645141
1999-07-01	40.3289808447688
1999-10-01	40.3687804005986
2000-01-01	40.2494163902068
2000-04-01	39.9879347017663
2000-07-01	39.6988699249524
2000-10-01	39.5076096436247
2001-01-01	39.4073524762567
2001-04-01	39.5799670459605
2001-07-01	39.2504268739330
2001-10-01	39.2648255347686
2002-01-01	39.0513118241065
2002-04-01	38.9240630807206
2002-07-01	38.7824611144343
2002-10-01	38.8397920748362
2003-01-01	38.6873867375591
2003-04-01	38.3991908530049
2003-07-01	38.2980089826481
2003-10-01	38.6009685829554
2004-01-01	37.2596446921761
2004-04-01	37.2570219016016
2004-07-01	37.1914913460347
2004-10-01	37.0659308581795
2005-01-01	37.3487149416155
2005-04-01	37.5680960667516
2005-07-01	37.8356468643700
2005-10-01	37.3772255622381
2006-01-01	37.1885865301255
2006-04-01	37.2352312209430
2006-07-01	37.5744030453458
2006-10-01	37.4590169153836
2007-01-01	37.9427398232212
2007-04-01	37.8127774162771
2007-07-01	37.2887052782816
2007-10-01	37.3385457426366
2008-01-01	37.0878347415432
2008-04-01	36.8198414249434
2008-07-01	37.0508717386204
2008-10-01	37.3786308821452
2009-01-01	37.5807642611098
2009-04-01	37.7170474489885
2009-07-01	37.7382432014275
2009-10-01	37.9195334792983
2010-01-01	37.8513820614110
2010-04-01	37.8570867646778
2010-07-01	38.2307678514593
2010-10-01	38.0049208572954
2011-01-01	38.0836184733019
2011-04-01	38.2360832339780
2011-07-01	37.9477446513328
2011-10-01	37.5173005453778
2012-01-01	36.7898545529651
2012-04-01	36.3694564148426
2012-07-01	36.4664968622832
2012-10-01	36.3842759098757
2013-01-01	36.5056828604515
2013-04-01	36.7612936652229
2013-07-01	36.7407321663196
2013-10-01	36.5806255649164
2014-01-01	36.2207899284792
2014-04-01	36.4004671972104
2014-07-01	35.9407733465378
2014-10-01	35.6801963274265
2015-01-01	36.0409529415507
2015-04-01	35.9338988032351
2015-07-01	36.0385972663113
2015-10-01	35.8360625874307
2016-01-01	35.6482708841925
2016-04-01	34.8835108720583
2016-07-01	34.9249841673932
2016-10-01	34.7778731523483
2017-01-01	34.5543366493550
2017-04-01	34.8103317050083
2017-07-01	34.3695329023383
2017-10-01	34.5313760000024
2018-01-01	34.3914903472460
2018-04-01	33.9565042712765