Quarter	Percent
1995-01-01	56.1468597900000
1995-04-01	56.6117675100000
1995-07-01	56.8863340000000
1995-10-01	56.4123687100000
1996-01-01	56.0970636200000
1996-04-01	56.8793302500000
1996-07-01	56.6083715600000
1996-10-01	55.8651109800000
1997-01-01	55.5448736100000
1997-04-01	55.9849357800000
1997-07-01	55.8030480700000
1997-10-01	55.4776681800000
1998-01-01	55.2429384800000
1998-04-01	54.7785739800000
1998-07-01	55.5161598300000
1998-10-01	55.3912808000000
1999-01-01	55.1697240300000
1999-04-01	55.1342685400000
1999-07-01	55.3826165300000
1999-10-01	56.1896746700000
2000-01-01	55.6265651100000
2000-04-01	56.4122493400000
2000-07-01	56.3595644500000
2000-10-01	55.9035590100000
2001-01-01	55.7802588200000
2001-04-01	56.0394640600000
2001-07-01	55.7467516200000
2001-10-01	54.6939691700000
2002-01-01	54.8041380300000
2002-04-01	54.7602587500000
2002-07-01	54.6064104100000
2002-10-01	55.0604912600000
2003-01-01	54.7587719300000
2003-04-01	54.8245401200000
2003-07-01	54.9195380100000
2003-10-01	55.4144111600000
2004-01-01	55.5350686000000
2004-04-01	55.8221628600000
2004-07-01	55.7094329800000
2004-10-01	55.6141512600000
2005-01-01	56.1967722200000
2005-04-01	56.8346334900000
2005-07-01	56.6490168200000
2005-10-01	57.1521562200000
2006-01-01	57.0424489000000
2006-04-01	57.8606942300000
2006-07-01	57.5386730800000
2006-10-01	57.7874651900000
2007-01-01	58.5426222800000
2007-04-01	59.1495223700000
2007-07-01	59.2285386700000
2007-10-01	58.8565926200000
2008-01-01	59.9255444800000
2008-04-01	60.1920858800000
2008-07-01	59.5858353900000
2008-10-01	59.6059979800000
2009-01-01	59.3909177200000
2009-04-01	59.2796473500000
2009-07-01	59.1955623100000
2009-10-01	58.9868235900000
2010-01-01	59.0407316800000
2010-04-01	60.4744672300000
2010-07-01	60.4944255900000
2010-10-01	60.6447956700000
2011-01-01	60.5238384100000
2011-04-01	61.3443450300000
2011-07-01	60.8340436100000
2011-10-01	60.8127149900000
2012-01-01	65.9333333333333
2012-04-01	66.5000000000000
2012-07-01	67.0333333333334
2012-10-01	66.5333333333334
2013-01-01	66.8666666666666
2013-04-01	66.9333333333333
2013-07-01	67.2666666666667
2013-10-01	67.1666666666667
2014-01-01	67.9333333333333
2014-04-01	67.9000000000000
2014-07-01	67.7000000000000
2014-10-01	67.9333333333333
2015-01-01	67.8666666666667
2015-04-01	68.4000000000000
2015-07-01	68.6000000000000
2015-10-01	68.4000000000000
2016-01-01	68.1000000000000
2016-04-01	68.8000000000000
2016-07-01	68.7666666666667
2016-10-01	68.6333333333334
2017-01-01	68.8333333333333
2017-04-01	69.0666666666667
2017-07-01	69.2000000000000
2017-10-01	69.0000000000000
2018-01-01	69.1000000000000
2018-04-01	69.0666666666667
2018-07-01	69.1333333333334