Quarter	Percent
2003-04-01	49.8744644948377
2004-04-01	50.0043084179287
2005-01-01	49.7166381528648
2005-04-01	50.1677779668276
2005-07-01	50.2188333965340
2005-10-01	50.2377375554844
2006-01-01	49.9910601447491
2006-04-01	50.5672494294267
2006-07-01	50.6635772056701
2006-10-01	50.9104814826999
2007-01-01	50.3740343544021
2007-04-01	50.8644978121043
2007-07-01	50.9106332868013
2007-10-01	51.1008114920354
2008-01-01	50.6077485796255
2008-04-01	51.0305628292985
2008-07-01	50.8467672837181
2008-10-01	50.8212756894992
2009-01-01	49.9734840538736
2009-04-01	50.1551747944899
2009-07-01	49.8152596304802
2009-10-01	49.7881790832139
2010-01-01	49.4437176073760
2010-04-01	49.7615290203836
2010-07-01	49.6174362260395
2010-10-01	49.6492550486686
2011-01-01	49.4218554142559
2011-04-01	49.6921426258657
2011-07-01	49.5549251329128
2011-10-01	49.7509526635872
2012-01-01	49.3733947273438
2012-04-01	49.8051434696436
2012-07-01	49.7034891768461
2012-10-01	49.9330740150951
2013-01-01	49.6215617402368
2013-04-01	50.0507273645248
2013-07-01	50.0264246901627
2013-10-01	50.1652367791011
2014-01-01	49.9809738541450
2014-04-01	50.3912869578031
2014-07-01	50.2333230638600
2014-10-01	50.5790267457384
2015-01-01	50.2564475090678
2015-04-01	50.6293261830280
2015-07-01	50.5301687485278
2015-10-01	50.8371117474329
2016-01-01	50.7965330823958
2016-04-01	51.0694581592238
2016-07-01	51.1542760150019
2016-10-01	51.3368040849432
2017-01-01	51.1795076140101
2017-04-01	51.6569554585609
2017-07-01	51.7548427938471
2017-10-01	51.9289585643983
2018-01-01	51.7526940559824