Quarter	Ratio
2005-04-01	35.0040929904696
2005-10-01	36.8594174105269
2006-04-01	38.1910312671421
2006-10-01	39.2228106246356
2007-04-01	40.5894250521469
2007-10-01	41.2492230837737
2008-04-01	41.3584973621069
2008-10-01	41.9470982893145
2009-04-01	42.5631031814066
2009-10-01	43.8386869612044
2010-04-01	43.9567044365162
2010-10-01	59.5201108459623
2011-04-01	60.3778628319955
2011-10-01	59.2269551075167
2012-04-01	58.6592638031373
2012-10-01	58.7264280381108
2013-04-01	58.7264280381108
2013-10-01	59.0542868640850
2014-04-01	56.5747293585493
2014-10-01	56.6658636787679
2015-04-01	56.6074820286356
2015-10-01	56.1272050842727
2016-04-01	55.8438833645328
2016-10-01	55.5015990724441
2017-04-01	55.1246571743193
2017-10-01	54.0336041900720