Quarter	Percent, Seasonally Adjusted
1999-07-01	38.2327807988177
1999-10-01	38.7313099378653
2000-01-01	39.7850795699204
2000-04-01	40.5298319415731
2000-07-01	40.3034837242049
2000-10-01	41.0158493421811
2001-01-01	41.4964642220963
2001-04-01	40.0346298903766
2001-07-01	39.7380343642734
2001-10-01	39.7569386070296
2002-01-01	39.2127544882451
2002-04-01	39.6001119549374
2002-07-01	39.2709531358085
2002-10-01	39.6931050050851
2003-01-01	41.2101171924723
2003-04-01	41.2920410512622
2003-07-01	41.0847037056571
2003-10-01	40.5243461191946
2004-01-01	39.3235550292336
2004-04-01	40.3668808306992
2004-07-01	40.1652223937171
2004-10-01	39.6020226102404
2005-01-01	39.6385195310486
2005-04-01	39.5147214424240
2005-07-01	39.8393209075211
2005-10-01	40.1401466434632
2006-01-01	39.4736474030253
2006-04-01	39.4289092400784
2006-07-01	39.7642750319144
2006-10-01	38.3995488441300
2007-01-01	38.1563098945319
2007-04-01	37.9324157535152
2007-07-01	37.9823716150063
2007-10-01	38.2573401703962
2008-01-01	38.0308304171533
2008-04-01	38.2397215595523
2008-07-01	38.1663201122218
2008-10-01	38.3420213294505
2009-01-01	38.4269530380418
2009-04-01	38.4594745592080
2009-07-01	38.0921591325703
2009-10-01	37.9908122361730
2010-01-01	37.4604275914884
2010-04-01	37.3932716274257
2010-07-01	37.2642626368738
2010-10-01	37.1968424547041
2011-01-01	36.8214431514938
2011-04-01	36.3022346780383
2011-07-01	36.3104406786300
2011-10-01	35.6703640067011
2012-01-01	35.5429694216311
2012-04-01	35.0305251045168
2012-07-01	35.3506878629630
2012-10-01	35.1485797064186
2013-01-01	35.3207483674453
2013-04-01	34.1661841855262
2013-07-01	33.7952795896778
2013-10-01	33.6714716081601
2014-01-01	32.8551305032752
2014-04-01	32.3052883174198
2014-07-01	32.6218767571464
2014-10-01	32.4436277069617
2015-01-01	31.8892789595554
2015-04-01	32.3741559472726
2015-07-01	32.0145769825937
2015-10-01	32.1433898536801
2016-01-01	32.2786462209342
2016-04-01	32.4242826963917
2016-07-01	31.6665906685589
2016-10-01	31.4118655376698
2017-01-01	30.9841940713290
2017-04-01	30.9357833227972
2017-07-01	30.8290429836945
2017-10-01	30.6827614124421
2018-01-01	30.8727241029068
2018-04-01	31.1088358669469
2018-07-01	31.2347108659291