Quarter	Percent
2004-01-01	11.97230906935420
2004-04-01	12.36137219471430
2004-07-01	12.22210449165650
2004-10-01	11.51660586820330
2005-01-01	11.59083055965230
2005-04-01	11.95495811867720
2005-07-01	11.80346062965510
2005-10-01	11.31780847383860
2006-01-01	11.29460880494350
2006-04-01	11.29150264724690
2006-07-01	11.83184339619660
2006-10-01	10.71341241142280
2007-01-01	10.70128742310540
2007-04-01	10.60172679581900
2007-07-01	11.33537251628730
2007-10-01	10.49785604840330
2008-01-01	10.52349026586080
2008-04-01	11.49842041275060
2008-07-01	12.43261270734120
2008-10-01	11.44072235464290
2009-01-01	13.09070873464500
2009-04-01	14.54744076533190
2009-07-01	15.59093187750590
2009-10-01	14.12672134348630
2010-01-01	14.27563002727210
2010-04-01	15.45695819427550
2010-07-01	15.57311608413760
2010-10-01	14.69367174881360
2011-01-01	15.03143034818490
2011-04-01	14.97545208824880
2011-07-01	15.50426576768710
2011-10-01	13.92869998334630
2012-01-01	14.45829452595910
2012-04-01	14.63257498316470
2012-07-01	15.02287456201250
2012-10-01	14.38805902261660
2013-01-01	14.72128558604240
2013-04-01	14.58910497223470
2013-07-01	14.29376423651410
2013-10-01	13.17782425376270
2014-01-01	13.36758105958610
2014-04-01	12.58341651971200
2014-07-01	13.22013786971510
2014-10-01	12.17206960524580
2015-01-01	12.00865259551680
2015-04-01	11.82650704766130
2015-07-01	11.80433168247360
2015-10-01	10.36136046873840
2016-01-01	10.77862775906930
2016-04-01	11.06027250563590
2016-07-01	11.01981924784910
2016-10-01	9.57495731189400
2017-01-01	9.64625705447590
2017-04-01	9.61490882604219
2017-07-01	9.69410605404755
2017-10-01	8.97461901113381
2018-01-01	9.08554126077144