Quarter	Percent, Seasonally Adjusted
1999-01-01	88.4268340525696
1999-04-01	88.3650205006887
1999-07-01	88.9049732866775
1999-10-01	88.9453232331185
2000-01-01	88.5250528266726
2000-04-01	88.8053523140691
2000-07-01	89.7894838552416
2000-10-01	89.7445820433436
2001-01-01	89.0595009596929
2001-04-01	88.9443378119002
2001-07-01	88.5944700460830
2001-10-01	89.4009216589862
2002-01-01	89.0168970814132
2002-04-01	89.3666026871401
2002-07-01	88.8377445339471
2002-10-01	88.4069097888676
2003-01-01	88.5604606525912
2003-04-01	87.7590176515733
2003-07-01	87.1066768994628
2003-10-01	86.7946257197697
2004-01-01	87.0329670329670
2004-04-01	85.5938416422287
2004-07-01	84.3373493975904
2004-10-01	83.8766832034018
2005-01-01	83.4514528703048
2005-04-01	82.1631205673759
2005-07-01	81.4217032967033
2005-10-01	80.5288461538462
2006-01-01	80.6152828316242
2006-04-01	78.9874255459960
2006-07-01	78.7107438016529
2006-10-01	78.0898876404494
2007-01-01	77.8877887788779
2007-04-01	76.7526455026455
2007-07-01	76.6645529486366
2007-10-01	75.6105296542975
2008-01-01	74.7936507936508
2008-04-01	74.4917407878018
2008-07-01	72.3611958511287
2008-10-01	72.7272727272727
2009-01-01	72.5747406955461
2009-04-01	70.9667940052894
2009-07-01	70.0528479154433
2009-10-01	70.5000000000000
2010-01-01	68.5076380728555
2010-04-01	67.5867956744451
2010-07-01	67.5007108330964
2010-10-01	67.4074074074074
2011-01-01	67.3632114379984
2011-04-01	65.8884921724801
2011-07-01	64.6234194612424
2011-10-01	63.8514442916094
2012-01-01	62.9126730564430
2012-04-01	61.9643332446101
2012-07-01	61.6715464466330
2012-10-01	61.3787596486558
2013-01-01	59.9004714510215
2013-04-01	59.7433211105291
2013-07-01	59.7589730154572
2013-10-01	58.8004190675746
2014-01-01	59.4811932555123
2014-04-01	58.6358921161826
2014-07-01	57.3132780082988
2014-10-01	55.9844559585492
2015-01-01	55.0867201656743
2015-04-01	55.0672182006205
2015-07-01	53.8779731127198
2015-10-01	52.6628748707342
2016-01-01	53.7085062240664
2016-04-01	51.7250324254215
2016-07-01	51.3878080415045
2016-10-01	50.4280155642023
2017-01-01	48.8244514106583
2017-04-01	46.7223818229303
2017-07-01	46.9051971794202
2017-10-01	45.4165578480021
2018-01-01	46.6825270948982
2018-04-01	47.1847739888977