Quarter	Ratio
2005-01-01	61.0030393761139
2005-04-01	60.9212594895083
2005-07-01	60.2273135246845
2005-10-01	58.6185800509085
2006-01-01	57.8353899880399
2006-04-01	56.8509488242627
2006-07-01	55.4170900418535
2006-10-01	55.8079612634946
2007-01-01	55.4844643280724
2007-04-01	54.9493511495761
2007-07-01	54.3635515176639
2007-10-01	54.1899100006367
2008-01-01	56.0695339896815
2008-04-01	58.4203166328452
2008-07-01	57.8930875866766
2008-10-01	60.9465157068376
2009-01-01	62.0910547480311
2009-04-01	65.6365405350060
2009-07-01	68.0531763950259
2009-10-01	67.1399953961486
2010-01-01	67.4254542641144
2010-04-01	64.5837305628254
2010-07-01	63.8160145494832
2010-10-01	62.1591821536686
2011-01-01	61.4404226920919
2011-04-01	61.9125658662479
2011-07-01	62.4203793453432
2011-10-01	61.7778860478428
2012-01-01	62.2604052776296
2012-04-01	62.3019705672720
2012-07-01	61.9190811672917
2012-10-01	62.5892563271600
2013-01-01	62.0777387105582
2013-04-01	60.4894614664089
2013-07-01	59.1079720086421
2013-10-01	58.2250302977137
2014-01-01	59.4345452049643
2014-04-01	58.7250086772096
2014-07-01	58.6234580154664
2014-10-01	58.9093433267796
2015-01-01	57.8791621635531
2015-04-01	57.4937958760786
2015-07-01	57.1695932568423
2015-10-01	57.1545447793531
2016-01-01	57.4589978086549
2016-04-01	56.5508683495400
2016-07-01	55.6147082604807
2016-10-01	54.6190784448017