Quarter	Percent
1995-01-01	64.8924731200000
1995-04-01	65.0456292000000
1995-07-01	65.6192236600000
1995-10-01	64.6104664900000
1996-01-01	63.9188555300000
1996-04-01	64.3259569000000
1996-07-01	64.7598177700000
1996-10-01	63.7347534800000
1997-01-01	62.6599920400000
1997-04-01	62.7791282700000
1997-07-01	63.8221423800000
1997-10-01	63.0913244600000
1998-01-01	61.5260012300000
1998-04-01	61.8213077500000
1998-07-01	62.2726771700000
1998-10-01	61.7924011800000
1999-01-01	60.9094860400000
1999-04-01	60.7539639700000
1999-07-01	61.3039751400000
1999-10-01	62.0687822300000
2000-01-01	60.8894978100000
2000-04-01	61.5070643600000
2000-07-01	61.8819859600000
2000-10-01	61.1248837900000
2001-01-01	60.7626076300000
2001-04-01	61.5031847100000
2001-07-01	61.5415780400000
2001-10-01	59.4732070900000
2002-01-01	59.3227131500000
2002-04-01	59.3170488500000
2002-07-01	59.5786864900000
2002-10-01	59.8164956600000
2003-01-01	59.1718304300000
2003-04-01	59.1852722300000
2003-07-01	59.6188526600000
2003-10-01	59.7194583300000
2004-01-01	60.0202869100000
2004-04-01	60.5875565000000
2004-07-01	60.7154829700000
2004-10-01	60.1573301500000
2005-01-01	60.2817703100000
2005-04-01	61.2635157500000
2005-07-01	61.4245416100000
2005-10-01	60.9202942700000
2006-01-01	61.2495923200000
2006-04-01	62.1039936900000
2006-07-01	61.6936787200000
2006-10-01	62.3045797300000
2007-01-01	63.0488474200000
2007-04-01	63.4626757000000
2007-07-01	63.5404879400000
2007-10-01	63.1951648500000
2008-01-01	64.2180414000000
2008-04-01	64.5368839600000
2008-07-01	64.0579839000000
2008-10-01	63.5256069500000
2009-01-01	62.8158844800000
2009-04-01	62.9347308200000
2009-07-01	62.6714396600000
2009-10-01	61.7720323000000
2010-01-01	62.1292645300000
2010-04-01	64.0985213300000
2010-07-01	64.1208418200000
2010-10-01	63.3801031200000
2011-01-01	63.3004718600000
2011-04-01	64.9382819700000
2011-07-01	65.0225903600000
2011-10-01	64.0837434300000
2012-01-01	70.2000000000000
2012-04-01	70.9666666666667
2012-07-01	71.1333333333334
2012-10-01	70.5000000000000
2013-01-01	70.9000000000000
2013-04-01	70.7333333333333
2013-07-01	71.7333333333333
2013-10-01	71.4666666666667
2014-01-01	71.3666666666667
2014-04-01	71.4666666666667
2014-07-01	71.4333333333334
2014-10-01	71.8333333333333
2015-01-01	71.5000000000000
2015-04-01	72.4000000000000
2015-07-01	72.5333333333333
2015-10-01	72.1333333333334
2016-01-01	71.3666666666667
2016-04-01	72.2000000000000
2016-07-01	72.5666666666666
2016-10-01	71.9666666666667
2017-01-01	72.0000000000000
2017-04-01	72.6666666666667
2017-07-01	72.9333333333334
2017-10-01	72.1666666666667
2018-01-01	71.6333333333333
2018-04-01	71.8000000000000
2018-07-01	71.8333333333333