Quarter	Percent
1999-07-01	13.23793167579410
1999-10-01	12.07442947898030
2000-01-01	13.24644526743760
2000-04-01	10.21936572996240
2000-07-01	9.96620011584420
2000-10-01	9.73141933544537
2001-01-01	12.70558623381500
2001-04-01	9.61069609445300
2001-07-01	8.85934698903731
2001-10-01	9.62919438851554
2002-01-01	10.76055325105990
2002-04-01	7.82794600273379
2002-07-01	7.80724226788024
2002-10-01	7.37947757497570
2003-01-01	10.81482451080670
2003-04-01	9.25426869742800
2003-07-01	9.26151291325707
2003-10-01	10.69681622270740
2004-01-01	12.17460057317180
2004-04-01	10.52331516459400
2004-07-01	9.15028605123738
2004-10-01	9.66112786303726
2005-01-01	11.80171474785870
2005-04-01	9.73619394784960
2005-07-01	9.22707158539751
2005-10-01	9.63232335993549
2006-01-01	11.35884663273870
2006-04-01	9.23983670554860
2006-07-01	9.60312472158488
2006-10-01	9.78823621618676
2007-01-01	9.56833919892734
2007-04-01	8.75865912680826
2007-07-01	8.59848596305043
2007-10-01	7.87933644446997
2008-01-01	9.44037088886439
2008-04-01	9.37993939805854
2008-07-01	9.04378284675966
2008-10-01	9.16025619254387
2009-01-01	10.82706335332940
2009-04-01	9.73633853502996
2009-07-01	9.46780441498647
2009-10-01	9.30906448522918
2010-01-01	12.15516255359730
2010-04-01	9.75361009501835
2010-07-01	8.61528437990785
2010-10-01	8.26434608918221
2011-01-01	11.28643698804400
2011-04-01	9.29731383112528
2011-07-01	9.02621409794221
2011-10-01	8.90283008864056
2012-01-01	10.24079725343080
2012-04-01	9.49057749531367
2012-07-01	8.31197552368504
2012-10-01	7.91010653719948
2013-01-01	10.29692269364780
2013-04-01	9.32789438204306
2013-07-01	9.05594434062780
2013-10-01	8.66020763436659
2014-01-01	11.64621310099990
2014-04-01	10.24386173949140
2014-07-01	9.06841902453599
2014-10-01	9.13069438628790
2015-01-01	12.41040420099830
2015-04-01	11.16756415837930
2015-07-01	9.39550981385916
2015-10-01	9.05270913886102
2016-01-01	12.64148348445130
2016-04-01	11.13714526255810
2016-07-01	10.29667135894040
2016-10-01	8.55221618314051
2017-01-01	11.61351680054070
2017-04-01	11.18503428636610
2017-07-01	9.31127186040037
2017-10-01	9.09254760787796
2018-01-01	11.69528881554960
2018-04-01	10.57120994402090
2018-07-01	10.67525255508050