Quarter	Percent
1999-01-01	42.9039978725290
2000-01-01	40.5458236222840
2000-04-01	40.9316700241488
2000-07-01	41.0843013483734
2000-10-01	40.3295539496636
2001-01-01	39.6324166609518
2001-04-01	40.2433259522802
2001-07-01	40.1478350082199
2001-10-01	39.0600838724841
2002-01-01	38.4784045358813
2002-04-01	38.8806006953863
2002-07-01	38.4749455337691
2002-10-01	38.1187571412775
2003-01-01	37.7071096559365
2003-04-01	38.4412975424585
2003-07-01	38.3439199491349
2003-10-01	38.1796005864308
2004-01-01	37.6067114424189
2004-04-01	38.0128740602427
2004-07-01	38.7968587029879
2004-10-01	38.5294802219745
2005-01-01	37.4863909378937
2005-04-01	38.1840095932651
2005-07-01	39.3086053957429
2005-10-01	39.2458722423163
2006-01-01	32.5696897805513
2006-04-01	33.2383030402832
2006-07-01	34.3430641864690
2006-10-01	34.1817093434891
2007-01-01	34.1347865801737
2007-04-01	35.1185059563203
2007-07-01	35.9751022328376
2007-10-01	36.0962249037493
2008-01-01	35.9101316394722
2008-04-01	36.3719210674841
2008-07-01	37.0850847948978
2008-10-01	37.2110589160441
2009-01-01	36.6158494001769
2009-04-01	36.8793042830848
2009-07-01	37.1616104191431
2009-10-01	37.1054792610306
2010-01-01	36.0303158787365
2010-04-01	36.7031732659365
2010-07-01	37.0085913747259
2010-10-01	36.6257213956690
2011-01-01	36.4121543275569
2011-04-01	36.6837231968811
2011-07-01	36.6889408973938
2011-10-01	36.6495194546763
2012-01-01	36.4573630281988
2012-04-01	36.7579957017479
2012-07-01	36.9029471544715
2012-10-01	36.7974347306150
2013-01-01	35.9910873062918
2013-04-01	36.4854345281910
2013-07-01	37.0280320366133
2013-10-01	37.2171849843234
2014-01-01	37.1412829844832
2014-04-01	37.3775017253278
2014-07-01	37.8415539876942