Quarter Percent 2003-09-30 2.11 2003-12-31 2.11 2004-03-31 2.04 2004-06-30 2.05 2004-09-30 2.08 2004-12-31 2.13 2005-03-31 2.11 2005-06-30 2.1 2005-09-30 2.1 2005-12-31 2.28 2006-03-31 2.54 2006-06-30 2.81 2006-09-30 3.13 2006-12-31 3.51 2007-03-31 3.75 2007-06-30 4 2007-09-30 4.37 2007-12-31 4.61 2008-03-31 4.34 2008-06-30 4.66 2008-09-30 4.77 2008-12-31 4.17 2009-03-31 1.87 2009-06-30 1.13 2009-09-30 0.7 2009-12-31 0.48 2010-03-31 0.46 2010-06-30 0.44 2010-09-30 0.65 2010-12-31 0.83 2011-03-31 0.86 2011-06-30 1.1623 2011-09-30 1.3646 2011-12-31 1.2224 2012-03-31 0.8117 2012-06-30 0.4132 2012-09-30 0.1013 2012-12-31 0.08 2013-03-31 0.0863