Quarter	Percent, Seasonally Adjusted
1999-01-01	68.9730799122271
1999-04-01	68.5542581738602
1999-07-01	68.4529419961311
1999-10-01	68.0631240174088
2000-01-01	67.6789639911186
2000-04-01	68.1524728045809
2000-07-01	68.5298790722919
2000-10-01	68.8043334061436
2001-01-01	68.4361075655729
2001-04-01	68.2643428327929
2001-07-01	68.6801560978010
2001-10-01	68.8630663831896
2002-01-01	67.8544001050487
2002-04-01	68.2018816522290
2002-07-01	68.4392644664601
2002-10-01	67.9620349468819
2003-01-01	68.5844618668653
2003-04-01	67.7654923139968
2003-07-01	67.9918989922948
2003-10-01	67.4770413847709
2004-01-01	67.9141234965177
2004-04-01	68.0357540464269
2004-07-01	68.2164041353353
2004-10-01	67.7103354914250
2005-01-01	67.8946154717998
2005-04-01	68.2427292171524
2005-07-01	67.6520722705919
2005-10-01	67.9894343567192
2006-01-01	68.3088783156618
2006-04-01	68.4120109280775
2006-07-01	68.9751346402715
2006-10-01	69.2471731979069
2007-01-01	69.1853606653652
2007-04-01	68.7317136894390
2007-07-01	67.9980171705653
2007-10-01	68.0892429872935
2008-01-01	68.4494577712105
2008-04-01	69.4055269243936
2008-07-01	69.4276583458722
2008-10-01	68.5778705404582
2009-01-01	67.0459691237734
2009-04-01	65.7504944607341
2009-07-01	65.5006975443993
2009-10-01	63.8975704952905
2010-01-01	63.6853643821786
2010-04-01	63.0228233855209
2010-07-01	63.0915432182984
2010-10-01	63.4187071045160
2011-01-01	63.3873013911282
2011-04-01	63.0944623219074
2011-07-01	63.2638684988014
2011-10-01	62.8395623331591
2012-01-01	62.7853913108476
2012-04-01	62.2919344455031
2012-07-01	61.8372834881351
2012-10-01	62.4277005529586
2013-01-01	62.2775324121315
2013-04-01	61.9275079690222
2013-07-01	61.3177298221618
2013-10-01	61.5669040751973
2014-01-01	61.7426801244613
2014-04-01	62.0699097730432
2014-07-01	62.4631415837922
2014-10-01	62.5347158108280
2015-01-01	62.7571191992257
2015-04-01	62.6957282904020
2015-07-01	62.5205592992908
2015-10-01	63.1824192357570
2016-01-01	63.8503277922222
2016-04-01	64.0228688417540
2016-07-01	63.9218245107292
2016-10-01	63.6620151129702
2017-01-01	62.4181329370931
2017-04-01	62.7704733326675
2017-07-01	62.5761861817574
2017-10-01	62.9880413915116
2018-01-01	63.1892602887690
2018-04-01	63.6274802918066