Quarter	Percent, Seasonally Adjusted
1998-01-01	9.00329601213693
1998-04-01	8.90065404534444
1998-07-01	7.87601475766632
1998-10-01	8.40751263544330
1999-01-01	8.25405389932983
1999-04-01	8.07106300637050
1999-07-01	6.73611688713497
1999-10-01	6.55222047497381
2000-01-01	7.55015658623949
2000-04-01	5.81141797590175
2000-07-01	6.83952384768535
2000-10-01	6.21733399352155
2001-01-01	6.04610452405770
2001-04-01	6.91675525858378
2001-07-01	7.75776898504323
2001-10-01	8.36562651088840
2002-01-01	8.63505210045075
2002-04-01	9.67924734863469
2002-07-01	10.90854347884850
2002-10-01	10.18026407723350
2003-01-01	10.88936431612020
2003-04-01	11.41898917474510
2003-07-01	13.49663852520820
2003-10-01	14.50266843407350
2004-01-01	13.51311103009260
2004-04-01	13.31151474015750
2004-07-01	14.10492879310930
2004-10-01	13.50116064850260
2005-01-01	12.51505774332920
2005-04-01	14.56039446850970
2005-07-01	13.85269175359990
2005-10-01	14.55217027072870
2006-01-01	13.63451272717630
2006-04-01	15.20003004393310
2006-07-01	15.32742560983780
2006-10-01	15.48636354453170
2007-01-01	15.60216188036080
2007-04-01	13.12089887860100
2007-07-01	13.38815279880360
2007-10-01	13.08597530548820
2008-01-01	12.78392095405860
2008-04-01	12.56562769439670
2008-07-01	13.97605859938860
2008-10-01	15.20668029452700
2009-01-01	17.96968406357230
2009-04-01	20.19752981624490
2009-07-01	17.06488372191870
2009-10-01	21.12018799607860
2010-01-01	21.55499338960390
2010-04-01	22.17456868106790
2010-07-01	22.60731548393490
2010-10-01	20.20751239118940
2011-01-01	25.25415090771860
2011-04-01	28.50137245952490
2011-07-01	28.81631997745130
2011-10-01	33.47319141067460
2012-01-01	34.18735704262890
2012-04-01	36.36090251012340
2012-07-01	38.56487343433610
2012-10-01	37.87505941713490
2013-01-01	38.36407173272680
2013-04-01	36.40686271846430
2013-07-01	38.22166829999250
2013-10-01	33.82136563216470
2014-01-01	35.37268038821060
2014-04-01	37.70529024113860
2014-07-01	30.79784061738170
2014-10-01	32.94198773027690
2015-01-01	28.51806872690550
2015-04-01	29.23673495753100
2015-07-01	28.92784199797070
2015-10-01	31.56314059159680
2016-01-01	28.46453642340590
2016-04-01	26.95825610575480
2016-07-01	26.12096319221880
2016-10-01	27.40894974741760
2017-01-01	22.53023378469280
2017-04-01	23.76856074151760
2017-07-01	22.31019094028190
2017-10-01	21.06890957112520
2018-01-01	22.07080207949140
2018-04-01	18.30859705900540