Quarter	Percent, Seasonally Adjusted
1999-01-01	82.4490072267754
1999-04-01	82.6369154969660
1999-07-01	82.1501334831022
1999-10-01	81.8580943981827
2000-01-01	82.3019873085207
2000-04-01	82.8880290255890
2000-07-01	82.7646319861084
2000-10-01	81.6689832965424
2001-01-01	81.4837174040779
2001-04-01	81.0731773647363
2001-07-01	80.7282510520918
2001-10-01	81.5638931825424
2002-01-01	81.7147311990713
2002-04-01	81.8407693784007
2002-07-01	82.1077805953331
2002-10-01	82.1212278773552
2003-01-01	81.8945162742045
2003-04-01	81.9974470706357
2003-07-01	82.2952004323167
2003-10-01	83.0713963580658
2004-01-01	83.0290967341345
2004-04-01	82.9572530644238
2004-07-01	83.6091818290955
2004-10-01	83.9426422454829
2005-01-01	84.5353582221334
2005-04-01	84.5540261358376
2005-07-01	84.8451771489471
2005-10-01	84.2918161142148
2006-01-01	83.6115820176819
2006-04-01	84.7163241998472
2006-07-01	84.5733082275183
2006-10-01	85.0339117335836
2007-01-01	85.1749986516590
2007-04-01	85.2474502779902
2007-07-01	85.1995355864110
2007-10-01	85.6424701712805
2008-01-01	85.9761961870330
2008-04-01	85.6640169025175
2008-07-01	85.9578343137605
2008-10-01	85.1568215284378
2009-01-01	86.3406554379234
2009-04-01	85.2400440498928
2009-07-01	85.1903344837330
2009-10-01	85.5000952870206
2010-01-01	86.6695408592324
2010-04-01	85.8760036749073
2010-07-01	85.9827298379336
2010-10-01	86.7573724906532
2011-01-01	83.9375713798439
2011-04-01	85.3836262510618
2011-07-01	84.8337969697794
2011-10-01	84.8362106617930
2012-01-01	84.3750266805697
2012-04-01	84.7578915385093
2012-07-01	85.3499725909584
2012-10-01	85.4742919792825
2013-01-01	84.9499870588704
2013-04-01	85.6489758050737
2013-07-01	85.6621363219915
2013-10-01	85.0521101333486
2014-01-01	85.7833770276368
2014-04-01	85.6226595532725
2014-07-01	85.7677483842982
2014-10-01	85.4110531920685
2015-01-01	85.6209771523469
2015-04-01	84.7654609269702
2015-07-01	84.9013166129062
2015-10-01	84.9855862730097
2016-01-01	84.7512392815136
2016-04-01	84.9017036742866
2016-07-01	84.9667127811178
2016-10-01	85.9119435225727
2017-01-01	84.6930448089818
2017-04-01	85.1473656884206
2017-07-01	84.4598545949531
2017-10-01	85.0346139978080
2018-01-01	84.8124369950015
2018-04-01	84.7532564496818