Quarter	Percent, Seasonally Adjusted
1999-04-01	43.7138979210819
1999-07-01	43.9153986246930
1999-10-01	44.4919468212457
2000-01-01	44.9609491964092
2000-04-01	45.0724975326823
2000-07-01	45.3282599376522
2000-10-01	45.8733223662235
2001-01-01	46.2531648625967
2001-04-01	46.5734485498321
2001-07-01	46.9632488902775
2001-10-01	47.4175029411988
2002-01-01	47.4045227633428
2002-04-01	47.8792456375226
2002-07-01	48.3129950401884
2002-10-01	48.5523455827192
2003-01-01	48.5583184467054
2003-04-01	49.0782179557974
2003-07-01	49.1069164449923
2003-10-01	49.2204981493256
2004-01-01	49.7577018612141
2004-04-01	49.3106722962104
2004-07-01	48.8248280751988
2004-10-01	50.1018069727637
2005-01-01	50.7224264531582
2005-04-01	51.4612953246372
2005-07-01	51.8667350915253
2005-10-01	52.2839413588653
2006-01-01	53.0902338864753
2006-04-01	53.1362099071250
2006-07-01	52.9903890373202
2006-10-01	53.2388372599894
2007-01-01	53.5221206799024
2007-04-01	53.8700790620578
2007-07-01	54.0461677497097
2007-10-01	54.0597478207823
2008-01-01	53.8737982355579
2008-04-01	53.7946903758322
2008-07-01	53.9038808586633
2008-10-01	53.6321739953528
2009-01-01	52.2248425194199
2009-04-01	51.6850205408423
2009-07-01	50.9712886300422
2009-10-01	50.2330284370300
2010-01-01	50.0697401340121
2010-04-01	50.5206440099926
2010-07-01	50.5907188231309
2010-10-01	49.9308180233482
2011-01-01	50.1562830639254
2011-04-01	50.5611183714718
2011-07-01	49.8070354353403
2011-10-01	50.0410108166106
2012-01-01	49.0865279575545
2012-04-01	49.5690928858224
2012-07-01	48.9299239158795
2012-10-01	49.8822996011553
2013-01-01	50.2328924943139
2013-04-01	50.7826079582224
2013-07-01	51.3760739861097
2013-10-01	52.9305832706710
2014-01-01	52.4081399855446
2014-04-01	52.4461019869718
2014-07-01	53.4373492898220
2014-10-01	53.6309099507436
2015-01-01	54.4314229173736
2015-04-01	55.4320346618927
2015-07-01	55.8745744911349
2015-10-01	56.7523086623731
2016-01-01	56.9910486059902
2016-04-01	57.0277934307020
2016-07-01	57.0966474411071
2016-10-01	57.6639546678778
2017-01-01	57.8002852597234
2017-04-01	58.7195310638296
2017-07-01	58.9778705958447
2017-10-01	59.0463528463187
2018-01-01	59.3654253096650
2018-04-01	60.3477617871551