Quarter	Percent, Seasonally Adjusted
1998-01-01	43.9723605017196
1998-04-01	44.4383219671283
1998-07-01	44.7628652930468
1998-10-01	45.2042268522094
1999-01-01	45.2980700063251
1999-04-01	45.4873710990791
1999-07-01	45.5794705876959
1999-10-01	45.5478867902800
2000-01-01	45.7201828242811
2000-04-01	46.1477018059272
2000-07-01	46.5515321172645
2000-10-01	46.7811826547987
2001-01-01	47.1299846569415
2001-04-01	47.0233776771667
2001-07-01	47.4560911919812
2001-10-01	47.4721963659233
2002-01-01	47.7322901264630
2002-04-01	47.9163290765455
2002-07-01	48.0839173089616
2002-10-01	47.9220103120105
2003-01-01	48.0484655663717
2003-04-01	48.6105301564051
2003-07-01	48.6920825279252
2003-10-01	47.9622933803492
2004-01-01	50.9518799220271
2004-04-01	50.5947807126219
2004-07-01	50.7050751086916
2004-10-01	51.0084829602102
2005-01-01	50.6320625866293
2005-04-01	50.3761921736529
2005-07-01	50.0605194788775
2005-10-01	50.8023575428909
2006-01-01	51.0388022226388
2006-04-01	50.9115444840174
2006-07-01	50.5601695990731
2006-10-01	50.8155511553022
2007-01-01	50.0753018809714
2007-04-01	50.3303538581095
2007-07-01	51.0689660122704
2007-10-01	51.0679574993975
2008-01-01	51.6247909272645
2008-04-01	51.8799711244286
2008-07-01	51.7911841133435
2008-10-01	51.2674677232502
2009-01-01	51.2081879851134
2009-04-01	51.2284003121558
2009-07-01	51.0025765244510
2009-10-01	50.9971049699537
2010-01-01	51.0135465516225
2010-04-01	51.1447298426452
2010-07-01	50.9344127734713
2010-10-01	51.2001397631311
2011-01-01	51.1998728959902
2011-04-01	51.1024501177345
2011-07-01	51.3984676244638
2011-10-01	52.0894556814128
2012-01-01	53.0644662530984
2012-04-01	53.5146932702128
2012-07-01	53.5387371047739
2012-10-01	53.6218843456050
2013-01-01	53.7291693618548
2013-04-01	53.3974064262621
2013-07-01	53.4493014360458
2013-10-01	53.7417487288826
2014-01-01	54.1610779059666
2014-04-01	53.9534815334486
2014-07-01	54.5443103805797
2014-10-01	54.9345912834614
2015-01-01	54.2526845666152
2015-04-01	54.2006402338783
2015-07-01	53.8378640395454
2015-10-01	54.1163446657452
2016-01-01	54.4037115808944
2016-04-01	55.3844009195324
2016-07-01	55.4465930430216
2016-10-01	55.5449523564163
2017-01-01	55.7854495363938
2017-04-01	55.6765063924880
2017-07-01	56.2543865739594
2017-10-01	55.9886163042252
2018-01-01	56.2339309259981
2018-04-01	56.6658135067232