Month Percent 1996-01-31 5.6132 1996-02-29 6.2255 1996-03-31 5.9771 1996-04-30 5.912 1996-05-31 5.9248 1996-06-30 5.7275 1996-07-31 5.6865 1996-08-31 5.689 1996-09-30 5.6838 1996-10-31 5.7617 1996-11-30 5.9905 1996-12-31 5.988 1997-01-31 5.9909 1997-02-28 5.965 1997-03-31 5.9347 1997-04-30 5.9841 1997-05-31 6.1913 1997-06-30 6.3574 1997-07-31 6.6152 1997-08-31 6.9073 1997-09-30 6.9726 1997-10-31 6.993 1997-11-30 7.1603 1997-12-31 7.2079 1998-01-31 7.2036 1998-02-28 7.222 1998-03-31 7.2295 1998-04-30 7.187 1998-05-31 7.1629 1998-06-30 7.3286 1998-07-31 7.352 1998-08-31 7.3918 1998-09-30 7.2693 1998-10-31 7.1082 1998-11-30 6.6331 1998-12-31 6.0255 1999-01-31 5.7568 1999-02-28 5.3803 1999-03-31 5.158 1999-04-30 5.0743 1999-05-31 5.0739 1999-06-30 4.8548 1999-07-31 4.8161 1999-08-31 4.8398 1999-09-30 5.0459 1999-10-31 5.226 1999-11-30 5.2782 1999-12-31 5.1963 2000-01-31 5.6308 2000-02-29 5.8817 2000-03-31 5.8233 2000-04-30 5.8444 2000-05-31 5.8702 2000-06-30 5.8111 2000-07-31 5.8305 2000-08-31 5.8084 2000-09-30 5.824 2000-10-31 5.8111 2000-11-30 5.7966 2000-12-31 5.6858 2001-01-31 5.7305 2001-02-28 5.588 2001-03-31 5.4384 2001-04-30 5.2745 2001-05-31 5.0843 2001-06-30 5.0367 2001-07-31 5.0573 2001-08-31 4.817 2001-09-30 4.6333 2001-10-31 4.3389 2001-11-30 3.8359 2001-12-31 3.8737 2002-01-31 3.8491 2002-02-28 3.862 2002-03-31 3.909 2002-04-30 3.8838 2002-05-31 3.8507 2002-06-30 3.8394 2002-07-31 3.7957 2002-08-31 3.8217 2002-09-30 3.8324 2002-10-31 3.8217 2002-11-30 3.7931 2002-12-31 3.8635 2003-01-31 3.828 2003-02-28 3.6165 2003-03-31 3.5579 2003-04-30 3.5313 2003-05-31 3.526 2003-06-30 3.53 2003-07-31 3.3496 2003-08-31 3.3355 2003-09-30 3.4855 2003-10-31 3.4428 2003-11-30 3.6735 2003-12-31 3.7355 2004-01-31 3.7519 2004-02-29 3.9238 2004-03-31 3.9957 2004-04-30 4.035 2004-05-31 4.2292 2004-06-30 4.4227 2004-07-31 4.5064 2004-08-31 4.6881 2004-09-30 4.705 2004-10-31 4.694 2004-11-30 4.6891 2004-12-31 4.6967 2005-01-31 4.7068 2005-02-28 4.7098 2005-03-31 4.7214 2005-04-30 4.715 2005-05-31 4.7185 2005-06-30 4.7095 2005-07-31 4.6307 2005-08-31 4.4698 2005-09-30 4.4673 2005-10-31 4.461 2005-11-30 4.4473 2005-12-31 4.473 2006-01-31 4.4495 2006-02-28 4.4298 2006-03-31 4.4211 2006-04-30 4.4303 2006-05-31 4.4986 2006-06-30 4.5391 2006-07-31 4.5279 2006-08-31 4.7252 2006-09-30 4.7831 2006-10-31 4.8514 2006-11-30 5.0111 2006-12-31 5.0887 2007-01-31 5.2245 2007-02-28 5.2923 2007-03-31 5.3007 2007-04-30 5.335 2007-05-31 5.515 2007-06-30 5.5819 2007-07-31 5.7795 2007-08-31 5.8407 2007-09-30 5.8135 2007-10-31 5.7311 2007-11-30 5.7064 2007-12-31 5.5661 2008-01-31 5.4 2008-02-29 5.2421 2008-03-31 5.2379 2008-04-30 5.0416 2008-05-31 5.0495 2008-06-30 5.1426 2008-07-31 5.1543 2008-08-31 5.1343 2008-09-30 5.0093 2008-10-31 4.3717 2008-11-30 2.6478 2008-12-31 1.7762 2009-01-31 1.2443 2009-02-28 0.8728 2009-03-31 0.6702 2009-04-30 0.6003 2009-05-31 0.5261 2009-06-30 0.5168 2009-07-31 0.4476 2009-08-31 0.4483 2009-09-30 0.4257 2009-10-31 0.4536 2009-11-30 0.4521 2009-12-31 0.4705 2010-01-31 0.4978 2010-02-28 0.4975 2010-03-31 0.5109 2010-04-30 0.5053 2010-05-31 0.5045 2010-06-30 0.5134 2010-07-31 0.5332 2010-08-31 0.5212 2010-09-30 0.5282 2010-10-31 0.5398 2010-11-30 0.5418 2010-12-31 0.5655 2011-01-31 0.5545 2011-02-28 0.5425 2011-03-31 0.5466 2011-04-30 0.5533 2011-05-31 0.5383 2011-06-30 0.5345 2011-07-31 0.5333 2011-08-31 0.5289 2011-09-30 0.5239 2011-10-31 0.521 2011-11-30 0.4977 2011-12-31 0.4658 2012-01-31 0.4674 2012-02-29 0.4607 2012-03-31 0.4691 2012-04-30 0.4676 2012-05-31 0.4548 2012-06-30 0.4621 2012-07-31 0.46 2012-08-31 0.4384 2012-09-30 0.463 2012-10-31 0.4383 2012-11-30 0.4266 2012-12-31 0.4476 2013-01-31 0.4502 2013-02-28 0.4333 2013-03-31 0.4515 2013-04-30 0.4626 2013-05-31 0.4479 2013-06-30 0.455 2013-07-31 0.4522 2013-08-31 0.4393 2013-09-30 0.459 2013-10-31 0.4463 2013-11-30 0.4352 2013-12-31 0.421 2014-01-31 0.4334 2014-02-28 0.426 2014-03-31 0.436 2014-04-30 0.4253 2014-05-31 0.425 2014-06-30 0.4576 2014-07-31 0.4717 2014-08-31 0.458 2014-09-30 0.4843 2014-10-31 0.4817 2014-11-30 0.4808 2014-12-31 0.4674 2015-01-31 0.4938 2015-02-28 0.4843 2015-03-31 0.4959 2015-04-30 0.512 2015-05-31 0.5145 2015-06-30 0.5164 2015-07-31 0.5302 2015-08-31 0.5205 2015-09-30 0.5264 2015-10-31 0.5266 2015-11-30 0.5357 2015-12-31 0.5521 2016-01-31 0.5603 2016-02-29 0.5486 2016-03-31 0.5369 2016-04-30 0.5371 2016-05-31 0.5355 2016-06-30 0.5307 2016-07-31 0.4602 2016-08-31 0.3291 2016-09-30 0.2773 2016-10-31 0.2781 2016-11-30 0.2816 2016-12-31 0.2773 2017-01-31 0.2826 2017-02-28 0.2745 2017-03-31 0.2496 2017-04-30 0.2581 2017-05-31 0.2605 2017-06-30 0.2636 2017-07-31 0.2738 2017-08-31 0.2318 2017-09-30 0.2302 2017-10-31 0.3148 2017-11-30 0.4748 2017-12-31 0.4734 2018-01-31 0.4807 2018-02-28 0.4745 2018-03-31 0.4829 2018-04-30 0.515 2018-05-31 0.5026 2018-06-30 0.501