Quarter	Percent
1999-04-01	41.2808750431260
2000-01-01	41.8958574168879
2000-04-01	42.7087429129514
2000-07-01	43.1699317436398
2000-10-01	43.3273481361590
2001-01-01	43.4297900000000
2001-04-01	43.8817700000000
2001-07-01	44.0097200000000
2001-10-01	44.0665900000000
2002-01-01	44.0738500000000
2002-04-01	44.3047800000000
2002-07-01	44.8300300000000
2002-10-01	44.7768800000000
2003-01-01	44.5402000000000
2003-04-01	44.4200500000000
2003-07-01	44.5913000000000
2003-10-01	44.2078800000000
2004-01-01	44.0369700000000
2004-04-01	44.2190000000000
2004-07-01	44.5738900000000
2004-10-01	44.4162600000000
2005-01-01	44.1580800000000
2005-04-01	44.7114800000000
2005-07-01	44.9501700000000
2005-10-01	44.9953200000000
2006-01-01	45.1170700000000
2006-04-01	45.4788000000000
2006-07-01	45.7066700000000
2006-10-01	46.0454100000000
2007-01-01	46.3216800000000
2007-04-01	47.0304800000000
2007-07-01	47.1899500000000
2007-10-01	47.3767400000000
2008-01-01	47.4765500000000
2008-04-01	47.7283900000000
2008-07-01	48.2720200000000
2008-10-01	48.4362900000000
2009-01-01	48.6512000000000
2009-04-01	48.1946100000000
2009-07-01	48.1460600000000
2009-10-01	48.0408000000000
2010-01-01	46.2649800000000
2010-04-01	46.6386000000000
2010-07-01	46.7558700000000
2010-10-01	46.7990800000000
2011-01-01	46.5554200000000
2011-04-01	46.7807300000000
2011-07-01	46.7670200000000
2011-10-01	46.9942100000000
2012-01-01	46.6722900000000
2012-04-01	46.8449600000000
2012-07-01	47.0535300000000
2012-10-01	46.9137600000000
2013-01-01	46.4319900000000
2013-04-01	46.4511100000000
2013-07-01	46.3878000000000
2013-10-01	46.1552200000000
2014-01-01	45.2654300000000
2014-04-01	45.3883500000000
2014-07-01	45.8209700000000