Quarter	Percent, Seasonally Adjusted
1999-04-01	43.2830318782162
1999-07-01	42.6102767927763
1999-10-01	42.2581350007207
2000-01-01	42.1345219593213
2000-04-01	41.6574160802959
2000-07-01	41.8195551931729
2000-10-01	41.8783209823685
2001-01-01	41.9651005738360
2001-04-01	42.5511727223295
2001-07-01	42.6219689933083
2001-10-01	43.6010477511255
2002-01-01	43.9457289720205
2002-04-01	44.3161865404120
2002-07-01	44.6258806200501
2002-10-01	44.2973289547108
2003-01-01	44.0737213479983
2003-04-01	44.0101395402889
2003-07-01	44.0181560852203
2003-10-01	43.8676861186789
2004-01-01	44.0773602573481
2004-04-01	44.1275400859020
2004-07-01	43.9753598991114
2004-10-01	44.1952233300341
2005-01-01	44.0909912185238
2005-04-01	43.9488440591934
2005-07-01	43.1113278817743
2005-10-01	42.3969277653419
2006-01-01	41.5934397863303
2006-04-01	40.7484961277477
2006-07-01	39.8822990616748
2006-10-01	40.6296947279524
2007-01-01	23.7216222522368
2007-04-01	23.9787874905616
2007-07-01	27.0878320911395
2007-10-01	27.2984383356101
2008-01-01	27.8297338118500
2008-04-01	28.6768320338493
2008-07-01	29.3787560326540
2008-10-01	33.9754011973918
2009-01-01	35.1742151996047
2009-04-01	36.0034951691021
2009-07-01	38.6429869541772
2009-10-01	39.3668738026097
2010-01-01	41.8711732314412
2010-04-01	43.4688996543462
2010-07-01	44.8108581724992
2010-10-01	45.8452936998820
2011-01-01	46.2130746310634
2011-04-01	47.4868092908029
2011-07-01	47.5330586799640
2011-10-01	44.5089315993937
2012-01-01	48.1618212222392
2012-04-01	47.9000375355812
2012-07-01	48.0315707309878
2012-10-01	48.2194307330349
2013-01-01	48.3995242012527
2013-04-01	47.9937023142399
2013-07-01	48.3208155231925
2013-10-01	48.8473510726996
2014-01-01	49.3117912291180
2014-04-01	49.9302857588222
2014-07-01	50.1319957265093
2014-10-01	49.9330486891668
2015-01-01	49.3472709957716
2015-04-01	50.2945731188608
2015-07-01	50.0295547604778
2015-10-01	49.6526077793179
2016-01-01	48.9736709269030
2016-04-01	46.2926374779939
2016-07-01	46.1254809252958
2016-10-01	47.7622925717031
2017-01-01	50.3887216358820
2017-04-01	50.9894585780475
2017-07-01	55.1189439998085
2017-10-01	51.8373423324171
2018-01-01	52.0691120183981
2018-04-01	52.0353296683906