Quarter	Percent, Seasonally Adjusted
2000-01-01	17.68526869583740
2000-04-01	17.95953321535380
2000-07-01	18.23236584582800
2000-10-01	18.71244210483790
2001-01-01	19.16626060647300
2001-04-01	19.77214339341040
2001-07-01	20.07227101106060
2001-10-01	20.58768881799020
2002-01-01	20.86990532605410
2002-04-01	20.94259549807310
2002-07-01	21.15061320103790
2002-10-01	20.85000199618350
2003-01-01	20.65419432202230
2003-04-01	20.41527766337360
2003-07-01	20.51980793984010
2003-10-01	20.22825220608690
2004-01-01	20.27180439038410
2004-04-01	20.04573098211790
2004-07-01	19.72280242055010
2004-10-01	19.87324377984200
2005-01-01	19.82161334679960
2005-04-01	19.66706842175000
2005-07-01	19.13055155595440
2005-10-01	18.13441203207100
2006-01-01	16.84794431709890
2006-04-01	15.63686462385070
2006-07-01	14.22390939650760
2006-10-01	13.04921309680550
2007-01-01	11.84065051186100
2007-04-01	10.66533918875880
2007-07-01	9.84653263595917
2007-10-01	9.09152294848694
2008-01-01	8.52475663600288
2008-04-01	8.11042480958447
2008-07-01	7.75329419529791
2008-10-01	7.48184935822576
2009-01-01	8.74697716986033
2009-04-01	8.65405635761360
2009-07-01	8.64442278876401
2009-10-01	8.66631097797890
2010-01-01	10.35040469002430
2010-04-01	10.03389765336650
2010-07-01	9.85539908344199
2010-10-01	9.92237789016428
2011-01-01	10.07762789732730
2011-04-01	10.30689037623050
2011-07-01	10.56097865397090
2011-10-01	10.73400473157290
2012-01-01	10.71889717893190
2012-04-01	10.88141520800500
2012-07-01	10.98802495824140
2012-10-01	11.12372298043060
2013-01-01	11.32585912212130
2013-04-01	11.29094440607070
2013-07-01	11.12542988180730
2013-10-01	10.77855738070070
2014-01-01	10.37386948017830
2014-04-01	9.89575628531557
2014-07-01	9.29928554623783
2014-10-01	8.85639183151571
2015-01-01	8.35020418957568
2015-04-01	7.89317164538166
2015-07-01	7.52211612867222
2015-10-01	7.10965743803567
2016-01-01	6.77998444880374
2016-04-01	6.37874525034785
2016-07-01	6.07146678986039
2016-10-01	5.70963547956628
2017-01-01	5.28860189702065
2017-04-01	5.07610937013740
2017-07-01	4.79425010971108
2017-10-01	4.49943395378955
2018-01-01	4.14714782792961
2018-04-01	3.77701944403616