Quarter	Percent, Seasonally Adjusted
1998-01-01	3.35454961281713
1998-04-01	3.24828077493338
1998-07-01	3.20441192698320
1998-10-01	3.64372689839443
1999-01-01	3.90022863195302
1999-04-01	4.39200454113964
1999-07-01	3.87039908702611
1999-10-01	3.74735909562418
2000-01-01	3.61849116819249
2000-04-01	3.79629986663512
2000-07-01	4.06002259615435
2000-10-01	3.93850208177988
2001-01-01	3.92760794890015
2001-04-01	4.19694657766446
2001-07-01	4.20135606901755
2001-10-01	4.55473945123899
2002-01-01	4.56607076329290
2002-04-01	3.94265003478794
2002-07-01	4.12777391948292
2002-10-01	3.87151537936216
2003-01-01	3.36491450003909
2003-04-01	3.22743139370223
2003-07-01	3.02978371521390
2003-10-01	3.09468929809798
2004-01-01	4.57081595536818
2004-04-01	4.38914843268705
2004-07-01	4.33504768887367
2004-10-01	4.46044562699862
2005-01-01	4.15203208298412
2005-04-01	3.53818850253943
2005-07-01	3.80158944946257
2005-10-01	3.59736640456853
2006-01-01	4.07838718525692
2006-04-01	3.62897481515904
2006-07-01	3.44283888626973
2006-10-01	3.65704060148586
2007-01-01	3.60390723815660
2007-04-01	3.42291883909450
2007-07-01	3.33637024420850
2007-10-01	3.06790847236935
2008-01-01	3.14088355365514
2008-04-01	3.17007923519419
2008-07-01	3.19840262837796
2008-10-01	3.44244929331059
2009-01-01	3.77238887813201
2009-04-01	4.36667219315914
2009-07-01	5.04988673060273
2009-10-01	5.07837628773203
2010-01-01	5.63048510729398
2010-04-01	6.17024276680617
2010-07-01	6.22745644195555
2010-10-01	6.91090748927032
2011-01-01	7.16645143084043
2011-04-01	7.77076312533749
2011-07-01	8.78396539515272
2011-10-01	9.99914319062208
2012-01-01	11.04499984181810
2012-04-01	13.03483549696730
2012-07-01	14.61637670331960
2012-10-01	15.07598495575440
2013-01-01	15.61027848110520
2013-04-01	15.85193234622010
2013-07-01	16.39574473980960
2013-10-01	16.99231737897700
2014-01-01	16.99267543597510
2014-04-01	18.01254365881230
2014-07-01	17.06449628251940
2014-10-01	16.66139696658510
2015-01-01	17.69847578334900
2015-04-01	17.10982650465360
2015-07-01	17.41803179271880
2015-10-01	17.81975102753830
2016-01-01	18.59495724913780
2016-04-01	19.40246205113300
2016-07-01	19.05580186025200
2016-10-01	19.60478756408380
2017-01-01	18.46309825748620
2017-04-01	18.20904221154970
2017-07-01	18.61086807888390
2017-10-01	17.29748701262360
2018-01-01	15.83692991608580
2018-04-01	15.72103636448560