Quarter	Percent
1995-01-01	62.8983827600000
1995-04-01	62.6718122200000
1995-07-01	63.4244921500000
1995-10-01	62.5814183700000
1996-01-01	61.8629627700000
1996-04-01	62.0873214900000
1996-07-01	62.6766290500000
1996-10-01	61.9119725400000
1997-01-01	60.9009732100000
1997-04-01	61.0662278100000
1997-07-01	62.6535261500000
1997-10-01	61.7357971300000
1998-01-01	60.6264091800000
1998-04-01	61.2255833200000
1998-07-01	61.5332494400000
1998-10-01	60.4451067100000
1999-01-01	60.3963705800000
1999-04-01	60.1347184700000
1999-07-01	61.1561292800000
1999-10-01	61.1718531000000
2000-01-01	59.9360163200000
2000-04-01	60.8236974200000
2000-07-01	61.6729202900000
2000-10-01	60.5597964400000
2001-01-01	59.7590687600000
2001-04-01	60.7293442200000
2001-07-01	62.0680429800000
2001-10-01	60.1745989500000
2002-01-01	60.0026456200000
2002-04-01	59.7219176300000
2002-07-01	60.6605296500000
2002-10-01	60.4173898000000
2003-01-01	60.0008647500000
2003-04-01	59.5488203900000
2003-07-01	60.5536035700000
2003-10-01	60.4375453100000
2004-01-01	60.2802547800000
2004-04-01	60.6655109700000
2004-07-01	61.2347965200000
2004-10-01	60.2346041100000
2005-01-01	59.8073555200000
2005-04-01	60.4683024000000
2005-07-01	61.6735537200000
2005-10-01	60.7032695900000
2006-01-01	60.5878259400000
2006-04-01	61.4011492800000
2006-07-01	61.2048681500000
2006-10-01	61.1072971800000
2007-01-01	61.4265037000000
2007-04-01	61.8454763800000
2007-07-01	62.3520975300000
2007-10-01	61.4179785100000
2008-01-01	62.0384630600000
2008-04-01	62.0837428700000
2008-07-01	62.1556042600000
2008-10-01	61.6091954000000
2009-01-01	61.6873183400000
2009-04-01	62.1087502900000
2009-07-01	61.9085532300000
2009-10-01	61.2669409900000
2010-01-01	61.2784219200000
2010-04-01	62.4326347300000
2010-07-01	63.0545725500000
2010-10-01	61.8793340000000
2011-01-01	61.6370553700000
2011-04-01	62.7496414000000
2011-07-01	63.1278371700000
2011-10-01	61.8148688000000
2012-01-01	68.6666666666667
2012-04-01	69.3666666666666
2012-07-01	69.8333333333333
2012-10-01	69.3666666666667
2013-01-01	69.5000000000000
2013-04-01	68.9666666666666
2013-07-01	69.8666666666667
2013-10-01	69.2666666666667
2014-01-01	69.3333333333333
2014-04-01	69.1333333333333
2014-07-01	69.7333333333333
2014-10-01	69.5666666666667
2015-01-01	68.8666666666666
2015-04-01	69.2000000000000
2015-07-01	69.9000000000000
2015-10-01	69.2000000000000
2016-01-01	68.6000000000000
2016-04-01	69.1000000000000
2016-07-01	69.9000000000000
2016-10-01	68.8000000000000
2017-01-01	68.6333333333333
2017-04-01	69.2000000000000
2017-07-01	69.3666666666667
2017-10-01	68.6333333333334
2018-01-01	68.2000000000000
2018-04-01	68.3000000000000
2018-07-01	68.5333333333333