Quarter	Percent, Seasonally Adjusted
1999-04-01	43.7191320103415
1999-07-01	44.2602264809012
1999-10-01	44.7222465145262
2000-01-01	45.1435350553823
2000-04-01	45.6424884510254
2000-07-01	45.9453907581605
2000-10-01	46.1182457072751
2001-01-01	46.3072839076939
2001-04-01	46.3848894660525
2001-07-01	46.8039771864440
2001-10-01	46.9393959562286
2002-01-01	47.1143889721193
2002-04-01	47.2177603812760
2002-07-01	47.1055047679564
2002-10-01	47.1254174234123
2003-01-01	47.2535091307308
2003-04-01	47.4448340248655
2003-07-01	47.4856233251317
2003-10-01	47.6603686652266
2004-01-01	47.7724805075550
2004-04-01	47.8691695271494
2004-07-01	48.1623580747793
2004-10-01	48.8104107612597
2005-01-01	49.2602172050460
2005-04-01	49.6576709186687
2005-07-01	49.9388497877321
2005-10-01	50.1005819478166
2006-01-01	50.4259185487302
2006-04-01	50.5877131378401
2006-07-01	50.9099740330262
2006-10-01	51.2729040050096
2007-01-01	53.8495946171722
2007-04-01	54.1282844153261
2007-07-01	54.3081983075530
2007-10-01	54.3788979563225
2008-01-01	54.3672103737557
2008-04-01	53.8914904258536
2008-07-01	53.3733824413117
2008-10-01	52.7382558542574
2009-01-01	51.7144028605767
2009-04-01	51.0304827999126
2009-07-01	50.4404139679666
2009-10-01	49.9107943733654
2010-01-01	49.5504749595908
2010-04-01	49.0732462000265
2010-07-01	48.7782720966476
2010-10-01	48.3822088857918
2011-01-01	48.2545759009404
2011-04-01	48.3206705157273
2011-07-01	47.8718933635447
2011-10-01	47.9285400018066
2012-01-01	47.8300292692779
2012-04-01	47.7276746970587
2012-07-01	47.6944629657930
2012-10-01	47.8791315353136
2013-01-01	48.0238176201050
2013-04-01	48.3609616538290
2013-07-01	48.6660262011675
2013-10-01	48.5887055317579
2014-01-01	48.7322907821034
2014-04-01	48.7055398206662
2014-07-01	49.0767293942562
2014-10-01	49.3214391673016
2015-01-01	49.4608170958209
2015-04-01	49.7549543760546
2015-07-01	50.0744505218885
2015-10-01	50.5822028389150
2016-01-01	50.9345003392963
2016-04-01	51.3459745132090
2016-07-01	51.6178817310548
2016-10-01	51.6474299076015
2017-01-01	52.0105782325222
2017-04-01	51.9898278829875
2017-07-01	52.0881712277661
2017-10-01	52.5343125324327
2018-01-01	52.5847893997714
2018-04-01	52.9168351717179