Quarter	Percent, Seasonally Adjusted
1999-01-01	69.3182722376953
1999-04-01	69.2560105377353
1999-07-01	69.5007586224730
1999-10-01	69.7138298488182
2000-01-01	69.8729993690488
2000-04-01	70.0737458678251
2000-07-01	70.3263003295764
2000-10-01	70.5904908063967
2001-01-01	69.4407811002687
2001-04-01	69.7265813427108
2001-07-01	69.9076482354014
2001-10-01	70.1334018383417
2002-01-01	70.4606428341607
2002-04-01	70.6798853288328
2002-07-01	70.9674684193547
2002-10-01	71.1358965311652
2003-01-01	71.3973467878486
2003-04-01	71.6569439159130
2003-07-01	71.9074843302080
2003-10-01	72.0852069736146
2004-01-01	71.9761115237134
2004-04-01	72.0690923628170
2004-07-01	72.2421852141519
2004-10-01	72.4505704157121
2005-01-01	72.7470024187486
2005-04-01	72.9600446117844
2005-07-01	73.0193710225694
2005-10-01	73.2719957324850
2006-01-01	73.4653383267482
2006-04-01	73.4379926964839
2006-07-01	73.6124977656208
2006-10-01	73.6245741041034
2007-01-01	73.6530181280085
2007-04-01	73.9478819517575
2007-07-01	73.9994141766358
2007-10-01	73.9657360028006
2008-01-01	74.2330446314012
2008-04-01	74.2529840656800
2008-07-01	74.1731488677986
2008-10-01	74.0446603330046
2009-01-01	74.0488112862258
2009-04-01	73.6384327954560
2009-07-01	72.9711710332236
2009-10-01	73.1413666818507
2010-01-01	73.2113372064160
2010-04-01	73.4396166791358
2010-07-01	73.1051128277034
2010-10-01	72.8906496119076
2011-01-01	72.7974979834009
2011-04-01	72.7287557911001
2011-07-01	72.7121931355896
2011-10-01	72.7358640862739
2012-01-01	72.4032110195955
2012-04-01	72.4883489700100
2012-07-01	72.3729343566364
2012-10-01	72.0899968527599
2013-01-01	72.1051122023075
2013-04-01	71.5858213251542
2013-07-01	71.6452076271576
2013-10-01	71.4129309293966
2014-01-01	70.9115879848203
2014-04-01	71.0017081959650
2014-07-01	70.8272983769886
2014-10-01	71.0258472970076
2015-01-01	70.9086776533411
2015-04-01	70.9393826844492
2015-07-01	70.7980694534931
2015-10-01	70.6927897648644
2016-01-01	70.7784842999935
2016-04-01	70.5322336843748
2016-07-01	70.3444274137164
2016-10-01	70.2129793494462
2017-01-01	70.1545279486276
2017-04-01	69.9979423541310
2017-07-01	70.0777660809695
2017-10-01	69.9861168967302
2018-01-01	69.8970212839909
2018-04-01	70.0205919010275
2018-07-01	69.9743394638310