Quarter	Ratio
2005-10-01	51.7854493258499
2006-01-01	50.7366499427220
2006-04-01	52.5681201921098
2006-07-01	53.7985239935382
2006-10-01	51.9977991203437
2007-01-01	51.4839336945715
2007-04-01	50.1115234850328
2007-07-01	52.0445327422360
2007-10-01	54.3933630282133
2008-01-01	60.1095256391010
2008-04-01	59.6402575231499
2008-07-01	69.6880365549709
2008-10-01	81.5512281063453
2009-01-01	80.4181855429562
2009-04-01	70.7935255728540
2009-07-01	63.9245815141294
2009-10-01	61.2814985467121
2010-01-01	60.9588835849938
2010-04-01	64.4816029624998
2010-07-01	60.6706082294694
2010-10-01	56.7256565986408
2011-01-01	56.7377312473975
2011-04-01	57.7997514354845
2011-07-01	64.9485079460037
2011-10-01	65.7923370040804
2012-01-01	63.4416128350640
2012-04-01	67.4732608183657
2012-07-01	65.9308401450511
2012-10-01	63.9996877968826
2013-01-01	63.2451828449126
2013-04-01	66.7581955352756
2013-07-01	64.6388923145655
2013-10-01	65.2930384134716
2014-01-01	64.9927234575422
2014-04-01	64.2689223782523
2014-07-01	64.9794788994578
2014-10-01	64.8882599811507
2015-01-01	64.2361016910110
2015-04-01	65.5116102523078
2015-07-01	68.6722582620970
2015-10-01	67.2596692026807
2016-01-01	67.0413750407037
2016-04-01	64.4125291249309
2016-07-01	62.1246911880400
2016-10-01	60.9116689949065
2017-01-01	59.0573817641768
2017-04-01	58.6637229959454
2017-07-01	57.8740798823735
2017-10-01	54.5344755934928
2018-01-01	55.9996700000000