Monthly Percent
1999-01-31 17.9
1999-02-28 17.97
1999-03-31 17.77
1999-04-30 17.38
1999-05-31 17.15
1999-06-30 17.02
1999-07-31 16.68
1999-08-31 16.68
1999-09-30 16.73
1999-10-31 16.56
1999-11-30 16.73
1999-12-31 16.53
2000-01-31 16.62
2000-02-29 16.66
2000-03-31 16.39
2000-04-30 16.42
2000-05-31 16.46
2000-06-30 16.43
2000-07-31 16.27
2000-08-31 16.27
2000-09-30 15.88
2000-10-31 15.95
2000-11-30 15.89
2000-12-31 15.63
2001-01-31 15.63
2001-02-28 15.76
2001-03-31 15.23
2001-04-30 15.14
2001-05-31 14.93
2001-06-30 14.87
2001-07-31 14.95
2001-08-31 14.96
2001-09-30 15.01
2001-10-31 15.03
2001-11-30 14.98
2001-12-31 15.05
2002-01-31 14.43
2002-02-28 14.55
2002-03-31 14.1
2002-04-30 14.05
2002-05-31 14.01
2002-06-30 13.86
2002-07-31 13.79
2002-08-31 13.81
2002-09-30 13.95
2002-10-31 13.9
2002-11-30 13.99
2002-12-31 13.89
2003-01-31 13.97
2003-02-28 14.14
2003-03-31 13.73
2003-04-30 13.82
2003-05-31 13.73
2003-06-30 13.72
2003-07-31 13.49
2003-08-31 13.63
2003-09-30 13.68
2003-10-31 13.68
2003-11-30 13.78
2003-12-31 13.62
2004-01-31 14.07
2004-02-29 14.69
2004-03-31 14.57
2004-04-30 14.59
2004-05-31 14.16
2004-06-30 14.63
2004-07-31 14.35
2004-08-31 14.5
2004-09-30 14.72
2004-10-31 14.91
2004-11-30 15.3
2004-12-31 14.99
2005-01-31 15.19
2005-02-28 15.09
2005-03-31 14.95
2005-04-30 14.9
2005-05-31 14.82
2005-06-30 14.89
2005-07-31 14.98
2005-08-31 14.83
2005-09-30 15.13
2005-10-31 15.17
2005-11-30 15.31
2005-12-31 15.44
2006-01-31 15.51
2006-02-28 15.68
2006-03-31 15.18
2006-04-30 15.5
2006-05-31 15.66
2006-06-30 15.72
2006-07-31 15.64
2006-08-31 16.32
2006-09-30 16.46
2006-10-31 16.64
2006-11-30 17.02
2006-12-31 16.84
2007-01-31 16.98
2007-02-28 17.09
2007-03-31 16.45
2007-04-30 17.1
2007-05-31 16.87
2007-06-30 17.14
2007-07-31 17.27
2007-08-31 17.25
2007-09-30 17.49
2007-10-31 17.16
2007-11-30 17.73
2007-12-31 17.31
2008-01-31 17.67
2008-02-29 17.77
2008-03-31 17.35
2008-04-30 17.6
2008-05-31 17.46
2008-06-30 17.48
2008-07-31 17.45
2008-08-31 17.54
2008-09-30 17.7
2008-10-31 17.89
2008-11-30 18.01
2008-12-31 17.43
2009-01-31 18.12
2009-02-28 18.13
2009-03-31 17.82
2009-04-30 17.93
2009-05-31 17.95
2009-06-30 17.95
2009-07-31 18
2009-08-31 18.13
2009-09-30 18.28
2009-10-31 18
2009-11-30 18.33
2009-12-31 17.76
2010-01-31 18.36
2010-02-28 18.5
2010-03-31 18.24
2010-04-30 18.5
2010-05-31 18.17
2010-06-30 18.46
2010-07-31 18.43
2010-08-31 18.67
2010-09-30 18.86
2010-10-31 18.52
2010-11-30 18.48
2010-12-31 18.26
2011-01-31 18.77
2011-02-28 18.78
2011-03-31 18.07
2011-04-30 18.36
2011-05-31 18.55
2011-06-30 18.74
2011-07-31 18.24
2011-08-31 18.26
2011-09-30 18.41
2011-10-31 18.11
2011-11-30 18.31
2011-12-31 18.16
2012-01-31 18.46
2012-02-29 18.33
2012-03-31 17.92
2012-04-30 18.1
2012-05-31 17.96
2012-06-30 18.21
2012-07-31 18
2012-08-31 18.07
2012-09-30 18.35
2012-10-31 18.16
2012-11-30 18.25
2012-12-31 17.91
2013-01-31 18.11
2013-02-28 18.94
2013-03-31 17.4
2013-04-30 18.12
2013-05-31 17.86
2013-06-30 18.07
2013-07-31 17.76
2013-08-31 17.85
2013-09-30 18.28
2013-10-31 17.92
2013-11-30 18.03
2013-12-31 17.83
2014-01-31 17.87
2014-02-28 18.41
2014-03-31 17.59
2014-04-30 17.98
2014-05-31 17.81
2014-06-30 17.96
2014-07-31 17.69
2014-08-31 17.79
2014-09-30 18.03
2014-10-31 17.85
2014-11-30 17.99
2014-12-31 17.67
2015-01-31 17.91
2015-02-28 18.63
2015-03-31 17.85
2015-04-30 17.93
2015-05-31 17.89
2015-06-30 18.14
2015-07-31 17.91
2015-08-31 17.99
2015-09-30 18.08
2015-10-31 17.98
2015-11-30 17.97
2015-12-31 17.89