Quarter	Percent, Not Seasonally adjusted
1999-01-01	59.8746303265410
1999-04-01	61.5677734644514
1999-07-01	62.6484070756821
1999-10-01	62.3388689046442
2000-01-01	61.6357240835128
2000-04-01	63.9847959008143
2000-07-01	64.0491455097112
2000-10-01	63.6234101169152
2001-01-01	62.2121607670122
2001-04-01	63.4593400549243
2001-07-01	63.9437792348995
2001-10-01	63.2968913114005
2002-01-01	63.6411428182372
2002-04-01	64.4902431692013
2002-07-01	65.7657005183531
2002-10-01	64.1365567263521
2003-01-01	62.7512403278668
2003-04-01	63.9937884199406
2003-07-01	64.9196604558951
2003-10-01	64.7783698671168
2004-01-01	64.0023313799450
2004-04-01	66.0460424484113
2004-07-01	66.5214606691862
2004-10-01	65.5286281414956
2005-01-01	65.0458983742900
2005-04-01	66.4283046057013
2005-07-01	66.9967478846692
2005-10-01	66.9018943555311
2006-01-01	65.9122783313364
2006-04-01	66.5424230621469
2006-07-01	67.7482880783433
2006-10-01	67.1708313721423
2007-01-01	67.3456298384822
2007-04-01	68.7111543917216
2007-07-01	69.2495394080683
2007-10-01	68.6334683333610
2008-01-01	67.5079913577046
2008-04-01	69.2477938296153
2008-07-01	69.5608026836051
2008-10-01	68.1686361408238
2009-01-01	65.7065623893254
2009-04-01	66.9861274381902
2009-07-01	67.8051994350081
2009-10-01	67.0758761420994
2010-01-01	65.6763584595693
2010-04-01	67.4034085748046
2010-07-01	68.4026096113655
2010-10-01	67.6588429215384
2011-01-01	66.8057630612760
2011-04-01	68.0076927454433
2011-07-01	68.9887377740107
2011-10-01	68.2723021995939
2012-01-01	67.6552778873265
2012-04-01	69.2939375428572
2012-07-01	69.8378766717695
2012-10-01	69.0823373011974
2013-01-01	68.3893517105889
2013-04-01	68.7532740017057
2013-07-01	69.2679867329773
2013-10-01	68.7033758342396
2014-01-01	68.7432589817464
2014-04-01	69.2823331273294
2014-07-01	69.8063797312705
2014-10-01	69.5037478732024
2015-01-01	68.6829482185526
2015-04-01	69.1675791298696
2015-07-01	69.9594583723800