Quarter	Percent
2005-01-01	47.8134721498968
2005-04-01	46.9358058749628
2005-07-01	48.8317074577925
2005-10-01	47.9627078963427
2006-01-01	47.4331701213012
2006-04-01	47.8092832197086
2006-07-01	49.3724583387276
2006-10-01	48.9016538904924
2007-01-01	47.8205146797483
2007-04-01	47.4190364225244
2007-07-01	48.3484343425315
2007-10-01	49.8731280845018
2008-01-01	47.6524479930297
2008-04-01	47.7446166061224
2008-07-01	48.5759813551343
2008-10-01	47.0348229627752
2009-01-01	45.5074768957320
2009-04-01	45.8710345677297
2009-07-01	47.8450018936631
2009-10-01	48.4944681188560
2010-01-01	46.2231833246568
2010-04-01	47.2603309309913
2010-07-01	48.4293083412947
2010-10-01	46.4236098757455
2011-01-01	45.1837462855917
2011-04-01	46.5070245874169
2011-07-01	47.4151601472655
2011-10-01	48.4286919148809
2012-01-01	45.7822570808249
2012-04-01	47.5862597369900
2012-07-01	48.6222871026056
2012-10-01	47.0421839751062
2013-01-01	45.0342057785356
2013-04-01	46.5648278451880
2013-07-01	46.9978656122400
2013-10-01	46.8765225542549
2014-01-01	45.2966601894498
2014-04-01	45.5949850787860
2014-07-01	46.5243712113500
2014-10-01	44.8306323752178
2015-01-01	43.6473564371779
2015-04-01	44.3335459259709
2015-07-01	45.4235514659697
2015-10-01	45.8611108189570
2016-01-01	43.1087700229232
2016-04-01	43.8724418664534
2016-07-01	45.7960834208107
2016-10-01	44.1199410569657
2017-01-01	42.9650460044389
2017-04-01	43.5410913431220
2017-07-01	44.3775284954748
2017-10-01	44.2176044373811
2018-01-01	42.4075079418958
2018-04-01	43.9401286816160