Quarter	Percent, Seasonally Adjusted
1998-01-01	4.68020948248995
1998-04-01	4.51243211139563
1998-07-01	4.30470349754718
1998-10-01	4.11070915872953
1999-01-01	3.83024559982895
1999-04-01	3.78009846282130
1999-07-01	3.56018938779988
1999-10-01	3.38165254099986
2000-01-01	2.98161005987681
2000-04-01	2.93634563312794
2000-07-01	2.94335013191692
2000-10-01	2.92243177931890
2001-01-01	2.29483231390015
2001-04-01	2.26829109632756
2001-07-01	2.15706732232493
2001-10-01	2.28218812129410
2002-01-01	2.46623459613930
2002-04-01	2.62687494886388
2002-07-01	2.86927936549560
2002-10-01	3.05828761303004
2003-01-01	3.26647192888214
2003-04-01	3.57906937054885
2003-07-01	3.81918456864003
2003-10-01	4.06279224705049
2004-01-01	4.35041168183508
2004-04-01	4.54795484813478
2004-07-01	4.55406228329733
2004-10-01	4.77710739679164
2005-01-01	4.83516879236535
2005-04-01	4.82605409976308
2005-07-01	4.71929339254422
2005-10-01	4.51232270291208
2006-01-01	4.19314970535039
2006-04-01	3.96925533690922
2006-07-01	3.81291971727103
2006-10-01	3.64695796996679
2007-01-01	3.45730183186543
2007-04-01	3.23072329159127
2007-07-01	3.11147696563677
2007-10-01	2.91913061173428
2008-01-01	2.85067060592458
2008-04-01	2.75831773173853
2008-07-01	2.64958324613950
2008-10-01	2.74295338591206
2009-01-01	2.87064594835896
2009-04-01	3.20462509581963
2009-07-01	3.61838179363938
2009-10-01	3.95898087990970
2010-01-01	4.31847540984229
2010-04-01	4.46589772559237
2010-07-01	4.52420596804648
2010-10-01	4.49393388516502
2011-01-01	4.72645673031016
2011-04-01	4.81239316764396
2011-07-01	5.02742614106365
2011-10-01	5.33907011867990
2012-01-01	5.43752811181306
2012-04-01	5.68247752690398
2012-07-01	5.89985446239260
2012-10-01	6.26044147190180
2013-01-01	6.66924607952237
2013-04-01	7.11473386103123
2013-07-01	7.55030500407952
2013-10-01	7.63727940167966
2014-01-01	7.65950324609685
2014-04-01	7.54745995722168
2014-07-01	7.27813623043067
2014-10-01	7.17889345728385
2015-01-01	7.03285779441812
2015-04-01	6.90428918630991
2015-07-01	6.84230077159603
2015-10-01	6.70892292943908
2016-01-01	6.45817316563599
2016-04-01	6.18465273799374
2016-07-01	5.85987873712532
2016-10-01	5.52536327528339
2017-01-01	5.26415515614044
2017-04-01	4.99094419266471
2017-07-01	4.68532602148746
2017-10-01	4.41800797839144
2018-01-01	4.16027726027918
2018-04-01	3.90759092477516