Quarter Percent 1999-04-01 4.49630337104267 2000-04-01 4.11866282595512 2001-04-01 4.18290710679846 2002-04-01 4.73954634542868 2003-04-01 5.50330816027009 2004-04-01 5.53851783594536 2005-01-01 6.72952537579848 2005-04-01 6.52848858753893 2005-07-01 6.31682192246968 2005-10-01 6.13760691888429 2006-01-01 6.57028381804213 2006-04-01 5.84870248492280 2006-07-01 5.49721895965801 2006-10-01 5.49696420616369 2007-01-01 5.45382115735857 2007-04-01 4.75748561567904 2007-07-01 4.68762913708254 2007-10-01 4.53001927187885 2008-01-01 4.72273333149250 2008-04-01 4.33001418198036 2008-07-01 3.88514234227903 2008-10-01 3.98309062930673 2009-01-01 4.79356967526458 2009-04-01 4.67165311217493 2009-07-01 4.62442745783721 2009-10-01 4.38732438732439 2010-01-01 4.94886999667201 2010-04-01 4.25750392951844 2010-07-01 4.04144371873368 2010-10-01 3.86438454649799 2011-01-01 3.96980991716325 2011-04-01 3.46921970950447 2011-07-01 3.28512944971312 2011-10-01 3.05056941048209 2012-01-01 3.53809704905901 2012-04-01 3.09222971583666 2012-07-01 3.09440617702023 2012-10-01 2.95634423235326 2013-01-01 3.52469412593684 2013-04-01 3.12308054543221 2013-07-01 3.03188281353818 2013-10-01 2.90995318604852 2014-01-01 3.34212908078065 2014-04-01 3.00305270045600 2014-07-01 2.88465450255284