Quarter	Percent, Seasonally Adjusted
1998-01-01	42.8304140769755
1998-04-01	42.2857859967835
1998-07-01	41.6255261508241
1998-10-01	41.7408546117043
1999-01-01	40.9958601367886
1999-04-01	42.3652847100737
1999-07-01	42.6600265684288
1999-10-01	42.2102443558764
2000-01-01	42.3860955307016
2000-04-01	42.2568136242269
2000-07-01	42.4987425982852
2000-10-01	43.6101043103757
2001-01-01	41.9949700305264
2001-04-01	42.6682043669593
2001-07-01	42.7499108167239
2001-10-01	42.0197554364298
2002-01-01	42.8494715647643
2002-04-01	42.6299322535663
2002-07-01	41.3728878983622
2002-10-01	40.5837082359413
2003-01-01	40.2226749580361
2003-04-01	39.8078956733967
2003-07-01	39.3555684618836
2003-10-01	38.2841768208611
2004-01-01	41.6724461728649
2004-04-01	41.2479403869596
2004-07-01	41.0211956923061
2004-10-01	40.5324506926116
2005-01-01	39.6948665148573
2005-04-01	39.2045380109424
2005-07-01	38.6948313864557
2005-10-01	39.1027637300058
2006-01-01	38.7685577521911
2006-04-01	38.7228397396815
2006-07-01	39.0069057944234
2006-10-01	39.2510727047797
2007-01-01	39.6644546867104
2007-04-01	39.6100146212902
2007-07-01	38.5678798656576
2007-10-01	38.7451833618560
2008-01-01	38.7961969209612
2008-04-01	39.0460080543442
2008-07-01	39.1975729137621
2008-10-01	39.1179971082029
2009-01-01	40.1800532594148
2009-04-01	39.7738300217376
2009-07-01	39.5704967359152
2009-10-01	39.6522271713931
2010-01-01	39.2990145838281
2010-04-01	39.8412088836528
2010-07-01	39.9284446933435
2010-10-01	40.0507713925347
2011-01-01	40.9217276581802
2011-04-01	41.5440364865156
2011-07-01	43.9484322044201
2011-10-01	44.5096279268080
2012-01-01	44.7893454676076
2012-04-01	44.6081481199393
2012-07-01	45.1806521110359
2012-10-01	44.5055481256464
2013-01-01	45.4330173018904
2013-04-01	44.4915578542710
2013-07-01	44.5167491640179
2013-10-01	45.6634499323233
2014-01-01	45.5516950722345
2014-04-01	46.3026977340673
2014-07-01	46.8450556354338
2014-10-01	47.6923168988228
2015-01-01	46.7031495800708
2015-04-01	45.7562520414640
2015-07-01	44.6550857017598
2015-10-01	43.4277561714225
2016-01-01	43.2699918825050
2016-04-01	43.5764911528630
2016-07-01	42.2297980715637
2016-10-01	41.8545328820532
2017-01-01	41.2043297012652
2017-04-01	40.3907618898077
2017-07-01	39.3466543468318
2017-10-01	39.6640387181903
2018-01-01	39.7523957842091
2018-04-01	38.9410855099686