Quarter	Percent
2005-01-01	47.8174002216090
2005-04-01	46.8011919682453
2005-07-01	44.7896026956889
2005-10-01	46.9905485958217
2006-01-01	47.8338783261371
2006-04-01	46.5747603456631
2006-07-01	44.5888355117801
2006-10-01	46.9362563134846
2007-01-01	47.9873685808165
2007-04-01	46.7861869471878
2007-07-01	45.1158512151696
2007-10-01	47.2223491185987
2008-01-01	48.2959415100734
2008-04-01	46.6243713644313
2008-07-01	44.9702626886002
2008-10-01	47.8542698957146
2009-01-01	49.4220173453675
2009-04-01	47.9191242400897
2009-07-01	46.7475023109242
2009-10-01	49.4500579599354
2010-01-01	50.3385678625458
2010-04-01	48.7237538754348
2010-07-01	47.3908155657542
2010-10-01	49.8187284156738
2011-01-01	50.4835205187511
2011-04-01	49.1106043361630
2011-07-01	47.5031340983486
2011-10-01	49.4618522927964
2012-01-01	50.8095649344802
2012-04-01	48.9598349976994
2012-07-01	47.4466889668929
2012-10-01	49.7284694135174
2013-01-01	50.6850257815082
2013-04-01	49.1268438026389
2013-07-01	47.4580332529105
2013-10-01	50.3150046079362
2014-01-01	50.6573617368020
2014-04-01	49.4429198492979
2014-07-01	47.5291015337492
2014-10-01	50.0555975760438
2015-01-01	50.7465370373170
2015-04-01	49.6734888037431
2015-07-01	48.0202051659957
2015-10-01	49.9287858113243
2016-01-01	50.9107233092520
2016-04-01	49.3131681347135
2016-07-01	47.8475381408766
2016-10-01	49.8503610825210
2017-01-01	50.7493005585394
2017-04-01	49.1541824666485
2017-07-01	47.6901994895902
2017-10-01	50.1870510206290
2018-01-01	50.5230047789938
2018-04-01	49.1187978940750