Monthly
2004-01-31 2.99
2004-02-29 3.02
2004-03-31 3.16
2004-04-30 3.22
2004-05-31 3.32
2004-06-30 3.56
2004-07-31 3.81
2004-08-31 3.78
2004-09-30 3.95
2004-10-31 3.97
2004-11-30 3.98
2004-12-31 3.99
2005-01-31 4.01
2005-02-28 4.03
2005-03-31 4.01
2005-04-30 4.02
2005-05-31 4.04
2005-06-30 4.04
2005-07-31 4.06
2005-08-31 4.03
2005-09-30 3.83
2005-10-31 3.83
2005-11-30 3.84
2005-12-31 3.84
2006-01-31 3.88
2006-02-28 3.88
2006-03-31 3.94
2006-04-30 3.95
2006-05-31 3.86
2006-06-30 3.84
2006-07-31 3.84
2006-08-31 3.88
2006-09-30 4.05
2006-10-31 4.06
2006-11-30 4.11
2006-12-31 4.28
2007-01-31 4.42
2007-02-28 4.57
2007-03-31 4.5
2007-04-30 4.51
2007-05-31 4.53
2007-06-30 4.7
2007-07-31 4.75
2007-08-31 4.92
2007-09-30 4.95
2007-10-31 4.95
2007-11-30 4.94
2007-12-31 4.88
2008-01-31 4.67
2008-02-29 4.68
2008-03-31 4.47
2008-04-30 4.5
2008-05-31 4.3
2008-06-30 4.29
2008-07-31 4.31
2008-08-31 4.31
2008-09-30 4.31
2008-10-31 4.33
2008-11-30 3.8
2008-12-31 2.65
2009-01-31 1.88
2009-02-28 1.57
2009-03-31 1.28
2009-04-30 1.19
2009-05-31 1.25
2009-06-30 1.28
2009-07-31 1.3
2009-08-31 1.36
2009-09-30 1.36
2009-10-31 1.38
2009-11-30 1.41
2009-12-31 1.42
2010-01-31 1.38
2010-02-28 1.39
2010-03-31 1.45
2010-04-30 1.51
2010-05-31 1.58
2010-06-30 1.57
2010-07-31 1.61
2010-08-31 1.63
2010-09-30 1.68
2010-10-31 1.74
2010-11-30 1.76
2010-12-31 1.77
2011-01-31 1.67
2011-02-28 1.66
2011-03-31 1.73
2011-04-30 1.87
2011-05-31 1.88
2011-06-30 1.92
2011-07-31 1.92
2011-08-31 1.95
2011-09-30 1.96
2011-10-31 2.07
2011-11-30 2.09
2011-12-31 2.1
2012-01-31 2.12
2012-02-29 2.14
2012-03-31 2.27
2012-04-30 2.19
2012-05-31 2.24
2012-06-30 2.26
2012-07-31 2.24
2012-08-31 2.3
2012-09-30 2.3
2012-10-31 2.27
2012-11-30 2.26
2012-12-31 2.23
2013-01-31 2.21
2013-02-28 2.21
2013-03-31 2.2
2013-04-30 2.14
2013-05-31 2.09
2013-06-30 2.05
2013-07-31 1.98
2013-08-31 1.96
2013-09-30 1.92
2013-10-31 1.9
2013-11-30 1.84
2013-12-31 1.86
2014-01-31 1.7
2014-02-28 1.72
2014-03-31 1.64
2014-04-30 1.57
2014-05-31 1.51
2014-06-30 1.51
2014-07-31 1.48
2014-08-31 1.45
2014-09-30 1.44
2014-10-31 1.46
2014-11-30 1.42
2014-12-31 1.4
2015-01-31 1.4
2015-02-28 1.37
2015-03-31 1.34
2015-04-30 1.27
2015-05-31 1.24
2015-06-30 1.23
2015-07-31 1.22
2015-08-31 1.21
2015-09-30 1.21
2015-10-31 1.18
2015-11-30 1.17
2015-12-31 1.13