Quarter	Percent
2005-01-01	92.5562936133883
2005-04-01	92.4543719914798
2005-07-01	92.6606188921974
2005-10-01	93.1298909541039
2006-01-01	92.4322268034148
2006-04-01	93.1126684787619
2006-07-01	92.5556538712117
2006-10-01	92.8591104559727
2007-01-01	92.3540957027613
2007-04-01	92.8828611019854
2007-07-01	92.5433208369206
2007-10-01	92.8273173493043
2008-01-01	91.9988885554034
2008-04-01	92.5591902830403
2008-07-01	91.8559800170426
2008-10-01	91.2894488419828
2009-01-01	90.5013209009530
2009-04-01	90.2500641720402
2009-07-01	90.0199525866868
2009-10-01	90.0741816832454
2010-01-01	89.5909099011721
2010-04-01	90.4815291798745
2010-07-01	89.8209800829391
2010-10-01	89.3288674272789
2011-01-01	89.5788074780162
2011-04-01	90.1636747188196
2011-07-01	90.2043306339858
2011-10-01	90.2908707035492
2012-01-01	90.3175086653524
2012-04-01	91.0603889009637
2012-07-01	90.7047343800507
2012-10-01	90.1371437842856
2013-01-01	90.0445846241714
2013-04-01	90.1545621468347
2013-07-01	90.0648261942296
2013-10-01	90.9884060553497
2014-01-01	90.3739211894415
2014-04-01	90.2121400533175
2014-07-01	89.9342052924042
2014-10-01	90.8479614761101
2015-01-01	90.6659603530982
2015-04-01	90.9796691148928
2015-07-01	90.3961913316594
2015-10-01	91.1170940327298
2016-01-01	90.8680158718617
2016-04-01	91.1465846936134
2016-07-01	90.9126516013639
2016-10-01	91.3338561047100
2017-01-01	91.5133034576984
2017-04-01	91.5890488581344
2017-07-01	91.5580687752270
2017-10-01	91.5674209242706
2018-01-01	91.9434114741193
2018-04-01	91.7128275996294