Quarter	Percent
1995-01-01	69.9145299100000
1995-04-01	69.2482915700000
1995-07-01	68.8245315200000
1995-10-01	67.9458239300000
1996-01-01	67.6767676800000
1996-04-01	68.3008356500000
1996-07-01	68.9234184200000
1996-10-01	66.9056811900000
1997-01-01	64.9450549500000
1997-04-01	66.6666666700000
1997-07-01	64.9835345800000
1997-10-01	64.9698960000000
1998-01-01	65.0707290500000
1998-04-01	65.0673854400000
1998-07-01	63.7587506700000
1998-10-01	64.8168103400000
1999-01-01	66.5598290600000
1999-04-01	65.4862579300000
1999-07-01	64.9316508900000
1999-10-01	64.0797063500000
2000-01-01	64.4444444400000
2000-04-01	66.4289353000000
2000-07-01	64.0040444900000
2000-10-01	60.6532663300000
2001-01-01	64.0671273400000
2001-04-01	67.2019464700000
2001-07-01	64.2925430200000
2001-10-01	65.3080568700000
2002-01-01	65.9832246000000
2002-04-01	65.6709558800000
2002-07-01	66.1420863300000
2002-10-01	65.5708574000000
2003-01-01	67.1943711500000
2003-04-01	63.5732870800000
2003-07-01	65.0385604100000
2003-10-01	67.5446049300000
2004-01-01	67.9213718100000
2004-04-01	67.1340206200000
2004-07-01	69.6684404400000
2004-10-01	68.8511326900000
2005-01-01	67.0926517600000
2005-04-01	69.1280439900000
2005-07-01	69.6664080700000
2005-10-01	67.9521789400000
2006-01-01	67.8989060700000
2006-04-01	71.9076006000000
2006-07-01	70.9439528000000
2006-10-01	69.6881798400000
2007-01-01	71.1791948700000
2007-04-01	71.1142158600000
2007-07-01	72.0262793900000
2007-10-01	71.2722298200000
2008-01-01	72.0390309600000
2008-04-01	72.9290921100000
2008-07-01	70.7828365500000
2008-10-01	71.2012987000000
2009-01-01	71.1853720100000
2009-04-01	74.1744548300000
2009-07-01	72.8334357700000
2009-10-01	70.1247338000000
2010-01-01	71.6849148400000
2010-04-01	72.6782504500000
2010-07-01	73.5809806800000
2010-10-01	72.2205839000000
2011-01-01	71.5752420100000
2011-04-01	74.3140688800000
2011-07-01	75.9534206700000
2011-10-01	74.6286047200000
2012-01-01	75.8000000000000
2012-04-01	75.9666666666667
2012-07-01	74.1666666666667
2012-10-01	76.0666666666666
2013-01-01	78.5000000000000
2013-04-01	76.4333333333334
2013-07-01	75.7333333333333
2013-10-01	76.1666666666667
2014-01-01	77.7666666666667
2014-04-01	76.6333333333334
2014-07-01	75.4000000000000
2014-10-01	74.8000000000000
2015-01-01	76.5333333333333
2015-04-01	77.4333333333334
2015-07-01	77.0666666666667
2015-10-01	75.2000000000000
2016-01-01	75.8000000000000
2016-04-01	77.3333333333333
2016-07-01	77.0333333333333
2016-10-01	76.9666666666666
2017-01-01	77.3666666666666
2017-04-01	77.0333333333334
2017-07-01	77.3000000000000
2017-10-01	77.7000000000000
2018-01-01	77.3000000000000
2018-04-01	76.8666666666667
2018-07-01	75.9000000000000