Quarter	Percent, Seasonally Adjusted
1999-07-01	77.5363103616720
1999-10-01	77.4933336356816
2000-01-01	77.1717079211782
2000-04-01	76.9435510016363
2000-07-01	77.2952609473459
2000-10-01	77.2122412584226
2001-01-01	76.6180635226401
2001-04-01	77.3580321099472
2001-07-01	77.4184856677476
2001-10-01	77.4069718263857
2002-01-01	77.7842186503475
2002-04-01	77.9119454813325
2002-07-01	78.0656361386921
2002-10-01	78.0229158584710
2003-01-01	78.1940785261650
2003-04-01	77.9538998659675
2003-07-01	78.0191438522846
2003-10-01	78.3331265606461
2004-01-01	78.6463272024020
2004-04-01	78.3088057957608
2004-07-01	78.2464532528903
2004-10-01	78.7225511382379
2005-01-01	78.5379908974873
2005-04-01	78.4453862916882
2005-07-01	78.1181003537476
2005-10-01	77.9493085782332
2006-01-01	78.0174465967875
2006-04-01	77.9743813653479
2006-07-01	77.8853577526461
2006-10-01	77.8270933973229
2007-01-01	77.9244126401513
2007-04-01	77.9863868106719
2007-07-01	77.9415469348348
2007-10-01	77.7861786140753
2008-01-01	77.5451684156239
2008-04-01	77.5500930934901
2008-07-01	77.4741582621642
2008-10-01	77.1956088774312
2009-01-01	76.8337660130024
2009-04-01	77.1471873258343
2009-07-01	76.9412438260868
2009-10-01	76.9436255645451
2010-01-01	77.1038611188798
2010-04-01	77.1406420008963
2010-07-01	77.1612567012217
2010-10-01	77.2287220351438
2011-01-01	77.4127785590408
2011-04-01	77.4465020481382
2011-07-01	77.3223810121608
2011-10-01	77.6563616888496
2012-01-01	77.6585163786611
2012-04-01	77.8070804487261
2012-07-01	77.8140069288950
2012-10-01	77.6493129276693
2013-01-01	77.3797502850559
2013-04-01	77.6992554743408
2013-07-01	77.9404948041236
2013-10-01	78.2608749187248
2014-01-01	78.8139777187221
2014-04-01	78.6973289828776
2014-07-01	78.9505541012889
2014-10-01	78.9552987171220
2015-01-01	78.9794241910664
2015-04-01	78.8917105076647
2015-07-01	78.8542320097789
2015-10-01	78.7990016504981
2016-01-01	78.8496352809460
2016-04-01	78.6975791274212
2016-07-01	79.1140579889961
2016-10-01	79.0481293719075
2017-01-01	79.1939268702146
2017-04-01	79.4471047973782
2017-07-01	79.3631085284612
2017-10-01	79.2661073193030
2018-01-01	79.2611639607728
2018-04-01	79.1198557576836
2018-07-01	78.9748112006288