Quarter Percent 2003-09-30 2.09 2003-12-31 2.09 2004-03-31 1.96 2004-06-30 2.07 2004-09-30 2.09 2004-12-31 2.11 2005-03-31 2.11 2005-06-30 2.09 2005-09-30 2.12 2005-12-31 2.42 2006-03-31 2.73 2006-06-30 2.96 2006-09-30 3.31 2006-12-31 3.64 2007-03-31 3.86 2007-06-30 4.11 2007-09-30 4.56 2007-12-31 4.53 2008-03-31 4.52 2008-06-30 4.74 2008-09-30 5.1 2008-12-31 2.82 2009-03-31 1.32 2009-06-30 0.94 2009-09-30 0.49 2009-12-31 0.48 2010-03-31 0.46 2010-06-30 0.48 2010-09-30 0.7 2010-12-31 0.9 2011-03-31 0.99 2011-06-30 1.29 2011-09-30 1.38 2011-12-31 1.13 2012-03-31 0.49 2012-06-30 0.35 2012-09-30 0.08 2012-12-31 0.08 2013-03-31 0.08