Quarter	Percent, Seasonally Adjusted
1999-01-01	36.8374472366434
1999-04-01	37.1457753404836
1999-07-01	36.9257733562882
1999-10-01	36.8079783073915
2000-01-01	36.4617215342333
2000-04-01	36.6446651652135
2000-07-01	36.5207495211762
2000-10-01	36.3994271213858
2001-01-01	36.0220740153337
2001-04-01	35.8068407080559
2001-07-01	35.8278792735365
2001-10-01	36.0213631744412
2002-01-01	36.3724014747899
2002-04-01	36.5488622735402
2002-07-01	36.4512863785625
2002-10-01	36.3416721693267
2003-01-01	36.4474600631412
2003-04-01	36.2335430360632
2003-07-01	36.0626522187279
2003-10-01	36.2411634977536
2004-01-01	36.2917054719426
2004-04-01	36.1361539297839
2004-07-01	36.1923988558950
2004-10-01	36.4641989568628
2005-01-01	36.6659302692364
2005-04-01	36.9890319650305
2005-07-01	37.0650516511152
2005-10-01	36.7504012876193
2006-01-01	37.0484283371536
2006-04-01	37.0349687311643
2006-07-01	37.1716164513167
2006-10-01	37.3777949556404
2007-01-01	37.5309309061052
2007-04-01	37.5638914845670
2007-07-01	37.4620654649700
2007-10-01	37.1696577248986
2008-01-01	37.0063953354718
2008-04-01	36.9519166725214
2008-07-01	36.6707868824406
2008-10-01	36.9648093936028
2009-01-01	37.4106039609456
2009-04-01	37.4200979776092
2009-07-01	37.2056394746447
2009-10-01	37.2113183197392
2010-01-01	37.2926044552502
2010-04-01	37.1975383019241
2010-07-01	37.0774960513432
2010-10-01	37.0532092863690
2011-01-01	37.4269003081125
2011-04-01	37.3007710320685
2011-07-01	37.2634784682558
2011-10-01	37.0487667402651
2012-01-01	36.6977816744166
2012-04-01	36.7085438155401
2012-07-01	36.6901622149052
2012-10-01	36.9382011428747
2013-01-01	36.4149960855335
2013-04-01	36.7018285628554
2013-07-01	36.7403247170612
2013-10-01	36.8090174419656
2014-01-01	36.6495208878841
2014-04-01	36.6370718037781
2014-07-01	36.4891733658988
2014-10-01	36.2609843035994
2015-01-01	36.2214903537990
2015-04-01	36.3574504876465
2015-07-01	36.1120021847076
2015-10-01	35.8323994459646
2016-01-01	35.7809482633337
2016-04-01	35.5110851916644
2016-07-01	35.5325476148699
2016-10-01	35.5210754614307
2017-01-01	35.5359578683838
2017-04-01	35.5787011121505
2017-07-01	35.5320555255962
2017-10-01	35.6879795437518
2018-01-01	35.7734455584014
2018-04-01	35.7729438620435