Quarter Percent 1998-04-01 3.62008128991916 1999-04-01 3.17400044672772 2000-04-01 2.32039268183847 2001-01-01 2.28057281575021 2001-04-01 2.12060525144637 2001-07-01 2.17434802908024 2001-10-01 2.09244985450588 2002-01-01 2.27873403664631 2002-04-01 2.23873973818505 2002-07-01 2.28068620062946 2002-10-01 2.11635526432303 2003-01-01 2.52349883888090 2003-04-01 2.43433696348495 2003-07-01 2.52705986304396 2003-10-01 2.49757302974142 2004-01-01 2.91583100081546 2004-04-01 2.99167877427024 2004-07-01 3.06194223414077 2004-10-01 2.85223821471015 2005-01-01 3.00945262695098 2005-04-01 4.26470588235294 2005-07-01 3.57737834283209 2005-10-01 3.54578882857643 2006-01-01 3.93123083661848 2006-04-01 4.19944065722776 2006-07-01 3.30446921281654 2006-10-01 2.90441976921402 2007-01-01 3.28225666028208 2007-04-01 3.73460209867692 2007-07-01 2.95597484276730 2007-10-01 2.93538261716636 2008-01-01 3.25762491888384 2008-04-01 3.67883589887519 2008-07-01 3.08607387612603 2008-10-01 3.14058469475494 2009-01-01 3.79673399226472 2009-04-01 4.47722789261515 2009-07-01 3.84994007875364 2009-10-01 3.84787854199142 2010-01-01 4.46335273921481 2010-04-01 4.76149914821124 2010-07-01 3.97014417556246 2010-10-01 3.69521383848031 2011-01-01 4.18115511831058 2011-04-01 4.36532311016034 2011-07-01 3.55556495621642 2011-10-01 3.48768431281423 2012-01-01 3.90265524082908 2012-04-01 4.33150569380008 2012-07-01 3.70479580446092 2012-10-01 3.66015271671680 2013-01-01 4.19714165615805 2013-04-01 4.36334621199395 2013-07-01 3.86091479143510 2013-10-01 3.65909852546917 2014-01-01 4.18096593287018 2014-04-01 4.37890600505821 2014-07-01 3.65306335455589 2014-10-01 3.59569766957102