Quarter	Percent
1995-01-01	67.8391959800000
1995-04-01	65.3440482200000
1995-07-01	66.3995994000000
1995-10-01	66.9656203300000
1996-01-01	67.2781358500000
1996-04-01	65.8140678800000
1996-07-01	67.4350171700000
1996-10-01	68.6341463400000
1997-01-01	66.5696263900000
1997-04-01	65.5674102800000
1997-07-01	67.3300970900000
1997-10-01	70.3829374700000
1998-01-01	66.3797226200000
1998-04-01	66.1877394600000
1998-07-01	66.0161827700000
1998-10-01	65.4425612100000
1999-01-01	66.1925083000000
1999-04-01	65.4356060600000
1999-07-01	64.7031323000000
1999-10-01	63.7962963000000
2000-01-01	61.9003690000000
2000-04-01	61.3138686100000
2000-07-01	62.8106642600000
2000-10-01	63.1390134500000
2001-01-01	60.8407079600000
2001-04-01	61.7197730200000
2001-07-01	61.3929492700000
2001-10-01	58.9732711100000
2002-01-01	60.6276150600000
2002-04-01	60.5610561100000
2002-07-01	58.3333333300000
2002-10-01	57.7893472200000
2003-01-01	57.7671831500000
2003-04-01	56.9854388000000
2003-07-01	56.2256809300000
2003-10-01	55.9738763000000
2004-01-01	55.0340651000000
2004-04-01	56.0195635800000
2004-07-01	55.7584793100000
2004-10-01	56.0338484200000
2005-01-01	54.9275362300000
2005-04-01	56.2790697700000
2005-07-01	54.5358277400000
2005-10-01	51.6140350900000
2006-01-01	54.0503274700000
2006-04-01	51.9008825500000
2006-07-01	50.4187604700000
2006-10-01	50.6429277900000
2007-01-01	50.7336159100000
2007-04-01	49.7606128300000
2007-07-01	49.7162673400000
2007-10-01	48.6875000000000
2008-01-01	46.3602714400000
2008-04-01	48.9882210800000
2008-07-01	49.5221027500000
2008-10-01	48.9820005900000
2009-01-01	47.0129870100000
2009-04-01	47.0705916000000
2009-07-01	46.5497737600000
2009-10-01	47.4637681200000
2010-01-01	48.4210526300000
2010-04-01	46.2067069800000
2010-07-01	44.2145385200000
2010-10-01	45.2535059300000
2011-01-01	44.3639291500000
2011-04-01	44.4712828800000
2011-07-01	46.8983957200000
2011-10-01	45.7645178500000
2012-01-01	43.2333333333333
2012-04-01	41.9000000000000
2012-07-01	42.4333333333333
2012-10-01	42.0666666666667
2013-01-01	41.1666666666667
2013-04-01	39.8666666666667
2013-07-01	41.5666666666667
2013-10-01	40.7333333333333
2014-01-01	39.6000000000000
2014-04-01	40.7333333333333
2014-07-01	40.3333333333333
2014-10-01	38.2666666666667
2015-01-01	37.9666666666667
2015-04-01	39.1000000000000
2015-07-01	37.8000000000000
2015-10-01	38.0000000000000
2016-01-01	37.4000000000000
2016-04-01	38.0666666666667
2016-07-01	39.9000000000000
2016-10-01	37.4666666666667
2017-01-01	38.6000000000000
2017-04-01	39.5666666666667
2017-07-01	39.2666666666667
2017-10-01	37.1333333333333
2018-01-01	37.8333333333333
2018-04-01	38.4000000000000
2018-07-01	36.7333333333333