Quarter	Percent, Seasonally Adjusted
1998-01-01	38.1150998062104
1998-04-01	38.4867611610154
1998-07-01	38.7549238811441
1998-10-01	39.1328185607231
1999-01-01	39.2158916999771
1999-04-01	39.4002952446471
1999-07-01	39.4767532434474
1999-10-01	39.4405274872511
2000-01-01	39.5571269690130
2000-04-01	39.9197994745707
2000-07-01	40.2557317112727
2000-10-01	40.4794490401212
2001-01-01	40.7632486553347
2001-04-01	40.6590310622470
2001-07-01	41.0198590632410
2001-10-01	41.0031039966918
2002-01-01	41.2639748227276
2002-04-01	41.3935648136825
2002-07-01	41.5665476063247
2002-10-01	41.4593294754413
2003-01-01	41.5664904961648
2003-04-01	42.0180731064708
2003-07-01	42.0959669863285
2003-10-01	41.4963140175817
2004-01-01	43.9732649687282
2004-04-01	43.6195059527843
2004-07-01	43.6409572359952
2004-10-01	43.9070935967788
2005-01-01	43.5707865685467
2005-04-01	43.3162152457395
2005-07-01	43.0557198502147
2005-10-01	43.6574820604377
2006-01-01	43.8541970338324
2006-04-01	43.7642224889721
2006-07-01	43.4631190398937
2006-10-01	43.6870244901511
2007-01-01	43.0633461188079
2007-04-01	43.2585478527228
2007-07-01	43.9367550976240
2007-10-01	43.9677131247483
2008-01-01	44.4494764787738
2008-04-01	44.7072744608382
2008-07-01	44.6149877808042
2008-10-01	44.1736762311635
2009-01-01	44.1526708800095
2009-04-01	44.1601610421055
2009-07-01	43.9679109671432
2009-10-01	44.0125989851011
2010-01-01	44.0454953442023
2010-04-01	44.1524263619547
2010-07-01	43.9706263302972
2010-10-01	44.2461530314188
2011-01-01	44.2903110325868
2011-04-01	44.1944133406457
2011-07-01	44.4365939631922
2011-10-01	44.9845045038753
2012-01-01	45.7684333743498
2012-04-01	46.1559792197841
2012-07-01	46.1701404668283
2012-10-01	46.2287382449204
2013-01-01	46.3252262534912
2013-04-01	46.0026997513487
2013-07-01	46.0031558252938
2013-10-01	46.2593936150010
2014-01-01	46.5799671502214
2014-04-01	46.4047470600324
2014-07-01	46.9300674586227
2014-10-01	47.2770560255220
2015-01-01	46.6923704627982
2015-04-01	46.6652779551879
2015-07-01	46.3781940134270
2015-10-01	46.5351488952161
2016-01-01	46.8050408257294
2016-04-01	47.6460951229442
2016-07-01	47.6928689338429
2016-10-01	47.8150746577376
2017-01-01	48.0224611953998
2017-04-01	47.9058375121888
2017-07-01	48.4391625252170
2017-10-01	48.2181682650267
2018-01-01	48.4301702654341
2018-04-01	48.8633792391647