Quarter	Percent
1999-01-01	3.86172531921520
1999-04-01	3.85772062636109
1999-07-01	3.79772961816305
1999-10-01	3.79616257478853
2000-01-01	3.65226337448560
2000-04-01	3.61669242658424
2000-07-01	3.28947368421053
2000-10-01	3.27025915261209
2001-01-01	3.23840855351085
2001-04-01	2.92030848329049
2001-07-01	2.71130738420458
2001-10-01	3.39487179487180
2002-01-01	3.47229335245314
2002-04-01	3.05296588464297
2002-07-01	3.04209771586602
2002-10-01	3.12948902113688
2003-01-01	3.61977030352748
2003-04-01	3.21091505949938
2003-07-01	3.32685024055686
2003-10-01	3.40421181762421
2004-01-01	3.57289107289107
2004-04-01	3.15121751585840
2004-07-01	3.12339989759345
2004-10-01	3.21688351603319
2005-01-01	3.34663801043906
2005-04-01	3.00890389929383
2005-07-01	3.47923681257015
2005-10-01	3.75471890623406
2006-01-01	3.00560366785532
2006-04-01	2.85277636271014
2006-07-01	2.60675524901106
2006-10-01	2.48503905061365
2007-01-01	2.64437689969605
2007-04-01	2.01621073961499
2007-07-01	2.11034066927947
2007-10-01	2.22088232338458
2008-01-01	2.61842894263442
2008-04-01	1.94883070157905
2008-07-01	2.21278277190556
2008-10-01	2.19302578287069
2009-01-01	2.98834545273434
2009-04-01	3.13776272537105
2009-07-01	3.54813204190552
2009-10-01	3.53824866574422
2010-01-01	4.09229858988265
2010-04-01	4.13174243171285
2010-07-01	3.91248644919681
2010-10-01	4.39538779934956
2011-01-01	4.66193573822196
2011-04-01	4.29726000394244
2011-07-01	4.32341934213118
2011-10-01	4.44159936970652
2012-01-01	4.44575587685650
2012-04-01	4.09166912560244
2012-07-01	4.54098682917240
2012-10-01	4.92431688618046
2013-01-01	5.65204592287312
2013-04-01	5.31841821214797
2013-07-01	4.47190350102972
2013-10-01	4.73668726095911
2014-01-01	5.32863159956901
2014-04-01	4.53521402683906
2014-07-01	4.51341296260035
2014-10-01	4.76796553749755
2015-01-01	4.72510271962434
2015-04-01	4.43161807865388
2015-07-01	3.89203989829846