Quarter	Percent, Not Seasonally adjusted
1999-01-01	50.4892091000000
1999-04-01	52.1446091000000
1999-07-01	53.1594642100000
1999-10-01	52.2604811800000
2000-01-01	52.1631634000000
2000-04-01	54.4808723400000
2000-07-01	54.7358586100000
2000-10-01	53.8447949100000
2001-01-01	52.9389269800000
2001-04-01	54.1882773600000
2001-07-01	54.4698219400000
2001-10-01	53.8144536900000
2002-01-01	54.6989814000000
2002-04-01	55.3380282400000
2002-07-01	56.6318786900000
2002-10-01	55.3569427100000
2003-01-01	54.2446086000000
2003-04-01	55.2907925800000
2003-07-01	55.7082891400000
2003-10-01	55.8225175100000
2004-01-01	55.0241266000000
2004-04-01	56.9297972000000
2004-07-01	57.1411704900000
2004-10-01	55.9305495800000
2005-01-01	56.0670389800000
2005-04-01	57.3031486500000
2005-07-01	57.7238131500000
2005-10-01	57.7096847300000
2006-01-01	57.0544950800000
2006-04-01	57.8870924600000
2006-07-01	58.5122884800000
2006-10-01	57.7984665600000
2007-01-01	58.0258084600000
2007-04-01	59.0059836900000
2007-07-01	59.4983325500000
2007-10-01	59.0285186900000
2008-01-01	57.3692449000000
2008-04-01	59.2402245200000
2008-07-01	59.2772536400000
2008-10-01	58.2379140100000
2009-01-01	56.8246036900000
2009-04-01	57.9843528800000
2009-07-01	58.5964878200000
2009-10-01	57.5629084166667
2010-01-01	56.6515979366667
2010-04-01	58.1609534766667
2010-07-01	59.1059498233333
2010-10-01	58.1162441533333
2011-01-01	58.0817002600000
2011-04-01	59.1415318400000
2011-07-01	60.2923240966667
2011-10-01	59.1713602766667
2012-01-01	58.8932684933333
2012-04-01	60.4555371100000
2012-07-01	60.8614878233333
2012-10-01	60.0333923433333
2013-01-01	59.4593270000000
2013-04-01	59.8626268600000
2013-07-01	60.4128120200000
2013-10-01	59.4014009633333
2014-01-01	59.9085727833333
2014-04-01	60.2908970766667
2014-07-01	60.7837352300000
2014-10-01	60.1724164100000
2015-01-01	59.5368690866667
2015-04-01	60.0290205866667
2015-07-01	60.7988916900000