Quarter	Percent, Seasonally Adjusted
1999-01-01	26.0617969036772
1999-04-01	26.5968953843613
1999-07-01	25.9355850244302
1999-10-01	25.1194890055431
2000-01-01	24.0639661621329
2000-04-01	23.9160491274769
2000-07-01	23.6560788004574
2000-10-01	23.9530178356085
2001-01-01	24.0976907089758
2001-04-01	24.6672620198431
2001-07-01	25.6740625000000
2001-10-01	26.5351972041937
2002-01-01	25.3953110142821
2002-04-01	25.1122761582920
2002-07-01	25.3856061930005
2002-10-01	25.4643735896684
2003-01-01	25.5912072216549
2003-04-01	25.1525430337057
2003-07-01	25.3303360213297
2003-10-01	24.2298720890433
2004-01-01	25.1542551369063
2004-04-01	25.4635403307359
2004-07-01	24.6623008615814
2004-10-01	24.3365109201575
2005-01-01	25.5960345033811
2005-04-01	24.5357966684315
2005-07-01	23.8765348484278
2005-10-01	22.8387450335662
2006-01-01	22.9634789622507
2006-04-01	22.4986851969967
2006-07-01	22.9846330840661
2006-10-01	23.6456879064334
2007-01-01	23.4933917693997
2007-04-01	24.1020990383344
2007-07-01	24.3359348503939
2007-10-01	23.9790206021997
2008-01-01	23.6868440982365
2008-04-01	23.7498254280123
2008-07-01	23.2904625063032
2008-10-01	25.1157407407407
2009-01-01	26.7103135623473
2009-04-01	27.6281301080365
2009-07-01	27.1402991085233
2009-10-01	26.4196113986664
2010-01-01	25.7267391455126
2010-04-01	24.7600954843843
2010-07-01	24.6815055743872
2010-10-01	24.1539506196126
2011-01-01	23.3900279085868
2011-04-01	23.0581736912756
2011-07-01	23.4687529355881
2011-10-01	23.6481968607152
2012-01-01	23.3854430072813
2012-04-01	23.9995943023548
2012-07-01	24.4821950799931
2012-10-01	24.2629053135104
2013-01-01	25.0446152518097
2013-04-01	25.3346818100128
2013-07-01	25.2546991581128
2013-10-01	25.4668559192923
2014-01-01	26.0018513785171
2014-04-01	26.3303176452725
2014-07-01	26.7688298587761
2014-10-01	27.4468623185129
2015-01-01	28.3212848527881
2015-04-01	30.9642564069712
2015-07-01	28.4578890265589
2015-10-01	30.2154537004929
2016-01-01	30.5708239100009
2016-04-01	29.9969631962116
2016-07-01	30.0129721456119
2016-10-01	30.2327693055057
2017-01-01	27.9915362356769
2017-04-01	28.6050498473816
2017-07-01	27.9264945168371
2017-10-01	27.7575161902318
2018-01-01	27.7540506928555
2018-04-01	27.2185851514282