Quarter	Percent, Seasonally Adjusted
1999-01-01	92.4141194102319
1999-04-01	92.6385600216644
1999-07-01	92.2420990976240
1999-10-01	91.9209184912858
2000-01-01	91.9291953777604
2000-04-01	91.5872117035742
2000-07-01	91.7211734113547
2000-10-01	91.7482275753013
2001-01-01	91.3295598503677
2001-04-01	91.4284152649608
2001-07-01	91.2720800526804
2001-10-01	91.3910817557539
2002-01-01	91.5377759971907
2002-04-01	91.7028513542776
2002-07-01	92.1935065450155
2002-10-01	92.0959369227841
2003-01-01	91.9229257541550
2003-04-01	92.0374511672031
2003-07-01	91.3869815504382
2003-10-01	91.6773411344309
2004-01-01	91.5833157208944
2004-04-01	91.4377643274461
2004-07-01	91.5649321126288
2004-10-01	91.5492347887032
2005-01-01	91.5535829273695
2005-04-01	91.5056908057695
2005-07-01	91.7886810209367
2005-10-01	91.9953185575019
2006-01-01	92.0701970051347
2006-04-01	92.0743178568126
2006-07-01	92.4259427591585
2006-10-01	92.5798478929512
2007-01-01	92.4073464536306
2007-04-01	92.3123643904050
2007-07-01	92.0935257181499
2007-10-01	92.4799681597831
2008-01-01	92.7382127831950
2008-04-01	93.4104091144905
2008-07-01	93.7937455919654
2008-10-01	93.0594517747556
2009-01-01	92.6864922387120
2009-04-01	92.0534985422878
2009-07-01	92.1466359387579
2009-10-01	91.7720688838233
2010-01-01	92.2801662488710
2010-04-01	92.0169093593744
2010-07-01	91.6453906229412
2010-10-01	92.1058743478821
2011-01-01	91.6179703351692
2011-04-01	91.6359000630728
2011-07-01	91.6012269367208
2011-10-01	91.2564726153784
2012-01-01	90.9853869350103
2012-04-01	90.6959443213409
2012-07-01	90.5161951959145
2012-10-01	90.3871567938965
2013-01-01	90.7376541222100
2013-04-01	90.0885445099344
2013-07-01	89.9846571815137
2013-10-01	89.8368889955073
2014-01-01	89.7755812774010
2014-04-01	90.2190283319195
2014-07-01	90.8356650198794
2014-10-01	90.4083400277751
2015-01-01	90.6381283280456
2015-04-01	90.9582132573038
2015-07-01	90.6960588827395
2015-10-01	90.9119398847198
2016-01-01	91.0700792590977
2016-04-01	91.0533965752786
2016-07-01	90.6184854759593
2016-10-01	90.4115810982196
2017-01-01	89.8959306552430
2017-04-01	89.3167717753716
2017-07-01	89.4949429353533
2017-10-01	89.6479907993166
2018-01-01	89.3814531634063
2018-04-01	89.8474451924768