Quarter	Percent, Seasonally Adjusted
1998-01-01	48.2668399606145
1998-04-01	47.7598742239100
1998-07-01	47.3449684260194
1998-10-01	47.2792842793713
1999-01-01	46.9556912338074
1999-04-01	46.6429062210026
1999-07-01	46.3883870688771
1999-10-01	46.5278761863074
2000-01-01	46.2640128755088
2000-04-01	46.0713339927928
2000-07-01	46.1981822308553
2000-10-01	46.1630174607587
2001-01-01	46.5397308612564
2001-04-01	46.1808906120902
2001-07-01	46.1172855706633
2001-10-01	45.9864434654773
2002-01-01	46.1319875009822
2002-04-01	46.3985624306278
2002-07-01	46.4251002620758
2002-10-01	46.4003190812048
2003-01-01	46.1829284577408
2003-04-01	45.9285824359963
2003-07-01	45.5635168941020
2003-10-01	45.4376080692263
2004-01-01	45.5283480745986
2004-04-01	45.5745563841050
2004-07-01	45.5316007718906
2004-10-01	45.5009229431486
2005-01-01	45.5062332844194
2005-04-01	45.4765409160719
2005-07-01	45.8775095815462
2005-10-01	45.9288356640120
2006-01-01	46.0316502935154
2006-04-01	46.1235403354054
2006-07-01	46.1011789959291
2006-10-01	46.0751863307716
2007-01-01	46.3410653098437
2007-04-01	46.5533535317361
2007-07-01	46.4293454314624
2007-10-01	46.3710838769304
2008-01-01	46.5013808659234
2008-04-01	46.7810413326969
2008-07-01	46.5130164113001
2008-10-01	46.4238296902745
2009-01-01	46.0217893034451
2009-04-01	45.7796391950161
2009-07-01	45.5290907374493
2009-10-01	45.4751350998465
2010-01-01	45.0216925360525
2010-04-01	45.0295440354162
2010-07-01	45.1899334015789
2010-10-01	45.3452649494002
2011-01-01	45.4127221260723
2011-04-01	45.4963485753098
2011-07-01	45.7248885601651
2011-10-01	45.6356332168780
2012-01-01	45.5937160090213
2012-04-01	45.8567812354458
2012-07-01	46.1043042921117
2012-10-01	46.1875258497252
2013-01-01	46.3789710418356
2013-04-01	46.8239489618739
2013-07-01	46.7542101459957
2013-10-01	46.8257428017085
2014-01-01	46.8273755737797
2014-04-01	46.7938967909040
2014-07-01	47.1542894790633
2014-10-01	47.6268421835484
2015-01-01	47.8234509277773
2015-04-01	48.1480251254303
2015-07-01	48.3304617840463
2015-10-01	48.2493617906087
2016-01-01	48.9982164304288
2016-04-01	49.3456877470272
2016-07-01	49.4379289327815
2016-10-01	49.9801399929644
2017-01-01	50.0351884691754
2017-04-01	50.0881233112727
2017-07-01	50.7960382313104
2017-10-01	50.7511361756250
2018-01-01	50.9925045938928
2018-04-01	51.2155434270154