Quarter	Percent, Seasonally Adjusted
1998-01-01	41.3337283532944
1998-04-01	40.4600445253637
1998-07-01	41.0279159932728
1998-10-01	40.5308918803398
1999-01-01	39.7931047423759
1999-04-01	39.8261208106995
1999-07-01	39.5152777363059
1999-10-01	40.1696379997285
2000-01-01	39.3394485111723
2000-04-01	38.8179710226661
2000-07-01	38.7387788071540
2000-10-01	39.0602466983792
2001-01-01	36.2471825013304
2001-04-01	36.4418080953208
2001-07-01	36.7999694006477
2001-10-01	36.2016497210032
2002-01-01	36.7547412880003
2002-04-01	36.1686403210839
2002-07-01	36.0587548141678
2002-10-01	35.1820689685633
2003-01-01	35.4634211453794
2003-04-01	34.6159104690873
2003-07-01	34.0214216300142
2003-10-01	33.4777543074513
2004-01-01	37.7147915978261
2004-04-01	36.9908652482272
2004-07-01	35.8929099864600
2004-10-01	35.8350045671210
2005-01-01	34.5631954302445
2005-04-01	33.6861023261034
2005-07-01	33.4123403502105
2005-10-01	33.0881518381437
2006-01-01	33.4626801604795
2006-04-01	32.2478056392896
2006-07-01	31.7293772155108
2006-10-01	31.2833128408911
2007-01-01	31.2679077953552
2007-04-01	30.9350298184003
2007-07-01	31.0383417168240
2007-10-01	30.6579202513969
2008-01-01	29.6521614406318
2008-04-01	30.2756991265582
2008-07-01	29.8488692942999
2008-10-01	30.4419751951447
2009-01-01	30.9668217857352
2009-04-01	30.4430615067782
2009-07-01	30.9379291581902
2009-10-01	30.2754771088486
2010-01-01	30.3548331358013
2010-04-01	30.0820298999147
2010-07-01	29.9240086983335
2010-10-01	29.7171450272931
2011-01-01	29.2530321482461
2011-04-01	28.9365102999358
2011-07-01	28.9186430551878
2011-10-01	29.3638277068029
2012-01-01	29.3446675770442
2012-04-01	29.2364710055371
2012-07-01	28.8777127622894
2012-10-01	29.0149806797602
2013-01-01	28.7350486085992
2013-04-01	28.4717080513170
2013-07-01	28.0929627454386
2013-10-01	28.2302077440117
2014-01-01	27.8448599722506
2014-04-01	28.1107150348670
2014-07-01	28.2242346095611
2014-10-01	27.9208672842688
2015-01-01	27.0787068144480
2015-04-01	26.0789195111809
2015-07-01	25.4779152304226
2015-10-01	25.2373825216101
2016-01-01	24.3273187990879
2016-04-01	24.6242210386388
2016-07-01	24.6710003331987
2016-10-01	24.9686980623292
2017-01-01	25.6441554934731
2017-04-01	25.5466575045913
2017-07-01	24.4674475793205
2017-10-01	24.5168423802451
2018-01-01	23.9044548455818
2018-04-01	23.7058912070810