Quarter	Percent
2005-01-01	7.12340097864635
2005-04-01	6.80637871574451
2005-07-01	6.94619992839582
2005-10-01	6.74362658207526
2006-01-01	6.71726474560110
2006-04-01	6.25990933215552
2006-07-01	6.46084357903468
2006-10-01	6.03447703443658
2007-01-01	6.08318559929401
2007-04-01	5.68423910115644
2007-07-01	5.92816525769986
2007-10-01	5.68120827459173
2008-01-01	5.86260516102380
2008-04-01	5.78554386725086
2008-07-01	6.18136032242200
2008-10-01	6.22991016601730
2009-01-01	7.32862852480219
2009-04-01	7.54164474919305
2009-07-01	8.09514583932841
2009-10-01	7.73435450546226
2010-01-01	8.16665582655015
2010-04-01	7.91502235661552
2010-07-01	8.16760024531816
2010-10-01	7.86631197454332
2011-01-01	8.01642136067496
2011-04-01	7.78174272566764
2011-07-01	8.14976705124241
2011-10-01	7.79156036948787
2012-01-01	8.15361219059121
2012-04-01	7.89550549244581
2012-07-01	8.12609430790424
2012-10-01	7.93788451066353
2013-01-01	8.27620506834743
2013-04-01	7.90073628900444
2013-07-01	7.91140146804914
2013-10-01	7.62820531681455
2014-01-01	7.82060367848885
2014-04-01	7.36315248553209
2014-07-01	7.54024800341534
2014-10-01	7.14418443177868
2015-01-01	7.19022270581995
2015-04-01	6.87975502670630
2015-07-01	6.87353720317545
2015-10-01	6.52758328061825
2016-01-01	6.68982534021282
2016-04-01	6.38214468050027
2016-07-01	6.53448403565725
2016-10-01	6.17371148311718
2017-01-01	6.30373740492390
2017-04-01	5.89677565695606
2017-07-01	5.98004171866891
2017-10-01	5.55814132048218
2018-01-01	5.71807858800655
2018-04-01	5.31819965997199