Quarter	Percent
1995-01-01	65.3868988700000
1995-04-01	64.9577804600000
1995-07-01	63.6000000000000
1995-10-01	65.7182650200000
1996-01-01	66.4959621800000
1996-04-01	66.8102604300000
1996-07-01	63.8277139000000
1996-10-01	66.6925315200000
1997-01-01	67.1039938300000
1997-04-01	67.9930795800000
1997-07-01	62.4808868500000
1997-10-01	67.1542553200000
1998-01-01	67.7407198000000
1998-04-01	65.7217946300000
1998-07-01	65.4018691600000
1998-10-01	68.0372093000000
1999-01-01	69.0330929900000
1999-04-01	67.6427256000000
1999-07-01	66.5625000000000
1999-10-01	66.7520117000000
2000-01-01	68.9216221100000
2000-04-01	67.8824169800000
2000-07-01	64.6824678800000
2000-10-01	68.9810640200000
2001-01-01	70.3344120800000
2001-04-01	68.3596554200000
2001-07-01	64.2780365500000
2001-10-01	70.0071454100000
2002-01-01	70.7404103500000
2002-04-01	70.0551896000000
2002-07-01	69.2909187800000
2002-10-01	70.9751773000000
2003-01-01	73.0558015900000
2003-04-01	71.6230551600000
2003-07-01	68.1016231500000
2003-10-01	70.2041534700000
2004-01-01	71.8980667800000
2004-04-01	70.7894736800000
2004-07-01	67.0110313400000
2004-10-01	71.3786475600000
2005-01-01	71.5554781400000
2005-04-01	70.4501999000000
2005-07-01	66.6435385900000
2005-10-01	69.6366782000000
2006-01-01	69.6964470500000
2006-04-01	69.4716916200000
2006-07-01	68.6008583700000
2006-10-01	70.2517554400000
2007-01-01	70.5601092900000
2007-04-01	68.8415672900000
2007-07-01	67.3916737500000
2007-10-01	70.3270632100000
2008-01-01	69.9255751000000
2008-04-01	69.9594731500000
2008-07-01	68.6109238000000
2008-10-01	71.2049814900000
2009-01-01	71.7402248700000
2009-04-01	70.7390648600000
2009-07-01	69.9799196800000
2009-10-01	70.9558823500000
2010-01-01	71.8530884800000
2010-04-01	71.5736885900000
2010-07-01	68.7998670200000
2010-10-01	72.0139349700000
2011-01-01	71.9045251100000
2011-04-01	71.1379424400000
2011-07-01	70.8958917700000
2011-10-01	73.9094650200000
2012-01-01	50.3000000000000
2012-04-01	50.9666666666667
2012-07-01	47.7666666666667
2012-10-01	49.4666666666667
2013-01-01	49.1666666666667
2013-04-01	49.8000000000000
2013-07-01	47.6333333333333
2013-10-01	49.4666666666667
2014-01-01	50.8333333333333
2014-04-01	50.2333333333333
2014-07-01	46.7666666666667
2014-10-01	48.7666666666667
2015-01-01	51.3000000000000
2015-04-01	51.0333333333333
2015-07-01	47.4000000000000
2015-10-01	50.7000000000000
2016-01-01	51.8000000000000
2016-04-01	51.1333333333333
2016-07-01	49.6000000000000
2016-10-01	51.6000000000000
2017-01-01	52.8000000000000
2017-04-01	51.1666666666667
2017-07-01	49.2333333333333
2017-10-01	52.6333333333333
2018-01-01	53.6666666666667
2018-04-01	53.9666666666667
2018-07-01	51.6333333333333