Quarter	Percent
2005-01-01	2.81944920294611
2005-04-01	2.71582393508487
2005-07-01	2.68353447873703
2005-10-01	2.30081251201478
2006-01-01	2.60633000488827
2006-04-01	2.36267881610944
2006-07-01	2.90042067866525
2006-10-01	2.66998434137124
2007-01-01	2.92073240183381
2007-04-01	2.51583927841673
2007-07-01	2.83137592729434
2007-10-01	2.67991779169233
2008-01-01	2.89742900608002
2008-04-01	2.50525137755473
2008-07-01	3.05802437129763
2008-10-01	3.26323149542011
2009-01-01	3.88528172512250
2009-04-01	3.99050520761215
2009-07-01	4.82494081541330
2009-10-01	4.20370912448453
2010-01-01	4.22953274054045
2010-04-01	4.11234919582126
2010-07-01	4.22769539914681
2010-10-01	4.22799585883221
2011-01-01	4.01680847218195
2011-04-01	4.08847228695918
2011-07-01	4.30015672820142
2011-10-01	3.74506436645148
2012-01-01	3.80809714656162
2012-04-01	3.71642646990822
2012-07-01	3.89780851900892
2012-10-01	3.86814771630779
2013-01-01	3.84630066480103
2013-04-01	3.97047617162902
2013-07-01	3.99618194473134
2013-10-01	3.58894186401766
2014-01-01	3.76406898233473
2014-04-01	3.77742235694088
2014-07-01	4.10484722813324
2014-10-01	3.37980523319543
2015-01-01	3.31486203235604
2015-04-01	3.36739562773411
2015-07-01	3.61871327318601
2015-10-01	3.28864324722391
2016-01-01	3.18284318906282
2016-04-01	3.06035406517633
2016-07-01	3.20960470243029
2016-10-01	2.79352278351457
2017-01-01	2.71883545485770
2017-04-01	2.71441748525320
2017-07-01	2.69458404232162
2017-10-01	2.64720673443297
2018-01-01	2.46965763813332
2018-04-01	2.58213396826112
2018-07-01	2.71611077576472