Quarter	Percent, Seasonally Adjusted
1998-01-01	3.64124299443270
1998-04-01	3.44910837861005
1998-07-01	3.26590744667536
1998-10-01	3.10773622770126
1999-01-01	2.86638074003128
1999-04-01	2.79814798954997
1999-07-01	2.66058002704638
1999-10-01	2.53503888468449
2000-01-01	2.45853092927485
2000-04-01	2.32377535302046
2000-07-01	2.27515125114634
2000-10-01	2.26135295573096
2001-01-01	1.87030305492485
2001-04-01	1.89365235918527
2001-07-01	1.66435585097677
2001-10-01	1.82176793473692
2002-01-01	2.05285711332857
2002-04-01	2.31244249597195
2002-07-01	2.62856937350415
2002-10-01	2.85162685391908
2003-01-01	3.13180164445990
2003-04-01	3.41813781532328
2003-07-01	3.63497258556481
2003-10-01	3.88438586322848
2004-01-01	4.10804525866302
2004-04-01	4.29348918649526
2004-07-01	4.35194984957637
2004-10-01	4.56229674209422
2005-01-01	4.60468246881465
2005-04-01	4.58838430907177
2005-07-01	4.37873127399363
2005-10-01	4.20139247087505
2006-01-01	3.83305467309652
2006-04-01	3.60123138548026
2006-07-01	3.46386714824042
2006-10-01	3.22462345762364
2007-01-01	3.01905997952990
2007-04-01	2.84190981794493
2007-07-01	2.73246661450802
2007-10-01	2.59999005173082
2008-01-01	2.59596464658858
2008-04-01	2.49231608607936
2008-07-01	2.46392249875364
2008-10-01	2.58220494760590
2009-01-01	2.77412827073544
2009-04-01	3.16440593020549
2009-07-01	3.57078787014748
2009-10-01	3.96753645267543
2010-01-01	4.32588288249924
2010-04-01	4.44193301355697
2010-07-01	4.49012463297793
2010-10-01	4.33755202283995
2011-01-01	4.42429145230140
2011-04-01	4.49515030150582
2011-07-01	4.58956396664888
2011-10-01	4.89472491392974
2012-01-01	4.99591605741069
2012-04-01	5.26525100015086
2012-07-01	5.59412686244533
2012-10-01	6.01817578262750
2013-01-01	6.59051675294249
2013-04-01	7.10277601250092
2013-07-01	7.50978835447474
2013-10-01	7.56410045449008
2014-01-01	7.45456855837986
2014-04-01	7.24950644399681
2014-07-01	6.97436576562756
2014-10-01	6.86136000302040
2015-01-01	6.71698070325515
2015-04-01	6.56346776799931
2015-07-01	6.47981713039882
2015-10-01	6.34185618573332
2016-01-01	6.01551949411332
2016-04-01	5.79584968887696
2016-07-01	5.43111760079306
2016-10-01	5.04996253170498
2017-01-01	4.84873566409754
2017-04-01	4.55741453253558
2017-07-01	4.34431962518323
2017-10-01	4.15725387160998
2018-01-01	3.93177682264570
2018-04-01	3.76440825548933