Quarter Percent 1999-04-01 1.38297872340426 2000-04-01 1.14464099895942 2001-04-01 1.33470225872690 2002-04-01 2.84552845528455 2003-01-01 3.74493927125506 2003-04-01 3.51758793969849 2003-07-01 2.40963855421687 2003-10-01 2.52780586450961 2004-01-01 2.81407035175879 2004-04-01 4.49550449550450 2004-07-01 1.50602409638554 2004-10-01 1.58730158730159 2005-01-01 2.75862068965517 2005-04-01 2.34833659491194 2005-07-01 1.07948969578018 2005-10-01 2.62901655306719 2006-01-01 1.71265461465271 2006-04-01 3.44506517690875 2006-07-01 1.82815356489945 2006-10-01 2.10815765352887 2007-01-01 1.63191296464189 2007-04-01 3.02760463045414 2007-07-01 1.40969162995595 2007-10-01 1.76056338028169 2008-01-01 1.93832599118943 2008-04-01 2.85961871750433 2008-07-01 2.23175965665236 2008-10-01 4.24978317432784 2009-01-01 7.52405949256343 2009-04-01 9.16230366492146 2009-07-01 5.46255506607930 2009-10-01 6.64304694419840 2010-01-01 7.67857142857143 2010-04-01 8.08888888888889 2010-07-01 5.15555555555556 2010-10-01 7.02222222222222 2011-01-01 8.10810810810811 2011-04-01 7.98580301685892 2011-07-01 4.65320456540825 2011-10-01 5.13728963684677 2012-01-01 6.11702127659574 2012-04-01 6.11702127659574 2012-07-01 4.16297608503100 2012-10-01 4.41696113074205 2013-01-01 4.99124343257443 2013-04-01 6.38111888111888 2013-07-01 3.81944444444444 2013-10-01 3.66492146596859 2014-01-01 5.41484716157205 2014-04-01 5.06108202443281 2014-07-01 3.00687285223368