Monthly Percent
1978-01-31 6.505
1978-02-28 6.625
1978-03-31 6.125
1978-04-30 7.25
1978-05-31 8.44
1978-06-30 10.13
1978-07-31 10.25
1978-08-31 9
1978-09-30 8.69
1978-10-31 10.005
1978-11-30 12.005
1978-12-31 11.125
1979-01-31 12.255
1979-02-28 13.875
1979-03-31 12.94
1979-04-30 12.255
1979-05-31 11.565
1979-06-30 14.315
1979-07-31 14.065
1979-08-31 14.065
1979-09-30 13.875
1979-10-31 14.005
1979-11-30 16
1979-12-31 17.19
1980-01-31 17.56
1980-02-29 17.815
1980-03-31 18
1980-04-30 17.625
1980-05-31 16.815
1980-06-30 18.44
1980-07-31 17.38
1980-08-31 16.88
1980-09-30 16.315
1980-10-31 17.44
1980-11-30 14.19
1980-12-31 14.435
1981-01-31 14.255
1981-02-28 15.125
1981-03-31 12.255
1981-04-30 12.44
1981-05-31 11.815
1981-06-30 11.94
1981-07-31 13.125
1981-08-31 13.44
1981-09-30 15.94
1981-10-31 16.065
1981-11-30 15.44
1981-12-31 14.815
1982-01-31 14.505
1982-02-28 14.44
1982-03-31 13.315
1982-04-30 13.065
1982-05-31 13.19
1982-06-30 12.815
1982-07-31 12.065
1982-08-31 11.065
1982-09-30 11.19
1982-10-31 10.44
1982-11-30 10.345
1982-12-31 10.315
1983-01-31 11.565
1983-02-28 11.665
1983-03-31 10.875
1983-04-30 10.625
1983-05-31 10.44
1983-06-30 9.625
1983-07-31 9.625
1983-08-31 9.56
1983-09-30 10.125
1983-10-31 9.255
1983-11-30 9.005
1983-12-31 9.315
1984-01-31 9.375
1984-02-29 9.255
1984-03-31 8.935
1984-04-30 8.815
1984-05-31 7.19
1984-06-30 8.695
1984-07-31 12.25
1984-08-31 11.12
1984-09-30 10.94
1984-10-31 10.785
1984-11-30 9.695
1984-12-31 9.69
1985-01-31 14.125
1985-02-28 14.005
1985-03-31 14.255
1985-04-30 12.94
1985-05-31 12.69
1985-06-30 12.815
1985-07-31 11.875
1985-08-31 11.94
1985-09-30 11.875
1985-10-31 11.625
1985-11-30 11.875
1985-12-31 11.69
1986-01-31 12.44
1986-02-28 12.69
1986-03-31 12.19
1986-04-30 11.065
1986-05-31 10.315
1986-06-30 10.255
1986-07-31 9.94
1986-08-31 10.255
1986-09-30 9.505
1986-10-31 10.69
1986-11-30 11.125
1986-12-31 11.19
1987-01-31 11.065
1987-02-28 11.315
1987-03-31 10.065
1987-04-30 9.69
1987-05-31 8.875
1987-06-30 9.19
1987-07-31 8.44
1987-08-31 9.28
1987-09-30 10.125
1987-10-31 9.125
1987-11-30 9
1987-12-31 8.595
1988-01-31 8.41
1988-02-29 8.94
1988-03-31 8.69
1988-04-30 7.375
1988-05-31 7.25
1988-06-30 8.565
1988-07-31 10.125
1988-08-31 12.005
1988-09-30 11.875
1988-10-31 11.94
1988-11-30 12.94
1988-12-31 12.94
1989-01-31 12.94
1989-02-28 12.315
1989-03-31 12.78
1989-04-30 12.505
1989-05-31 13.875
1989-06-30 13.91
1989-07-31 13.78
1989-08-31 13.97
1989-09-30 13.815
1989-10-31 15.095
1989-11-30 14.97
1989-12-31 14.755
1990-01-31 14.8438
1990-02-28 14.94
1990-03-31 14.875
1990-04-30 14.97
1990-05-31 15.065
1990-06-30 15
1990-07-31 15
1990-08-31 15
1990-09-30 14.94
1990-10-31 13.97
1990-11-30 14.315
1990-12-31 14.315
1991-01-31 14
1991-02-28 13.28
1991-03-31 12.78
1991-04-30 11.97
1991-05-31 11.345
1991-06-30 11.625
1991-07-31 11.095
1991-08-31 10.91
1991-09-30 10.78
1991-10-31 10.53
1991-11-30 10.595
1991-12-31 10.44
1992-01-31 10.625
1992-02-29 10.91
1992-03-31 10.16
1992-04-30 10.63
1992-05-31 9.815
1992-06-30 10.22
1992-07-31 9.815
1992-08-31 9.565
1992-09-30 9.19
1992-10-31 8.69
1992-11-30 7.345
1992-12-31 6.125
1993-01-31 6.315
1993-02-28 6.315
1993-03-31 5.78
1993-04-30 5.66
1993-05-31 5.315
1993-06-30 6.13
1993-07-31 6.03
1993-08-31 5.97
1993-09-30 6.19
1993-10-31 5.81
1993-11-30 5.44
1993-12-31 5.28
1994-01-31 5.38
1994-02-28 5.03
1994-03-31 4.66
1994-04-30 4.66
1994-05-31 4.845
1994-06-30 4.97
1994-07-31 4.97
1994-08-31 4.75
1994-09-30 5.095
1994-10-31 5.41
1994-11-30 5.16
1994-12-31 5.315
1995-01-31 5.375
1995-02-28 5.97
1995-03-31 6.22
1995-04-30 5.625
1995-05-31 6.325
1995-06-30 6.28
1995-07-31 6.72
1995-08-31 6.44
1995-09-30 6.735
1995-10-31 6.66
1995-11-30 6.94
1995-12-31 6.41
1996-01-31 6.22
1996-02-29 6.265
1996-03-31 6.03
1996-04-30 6.095
1996-05-31 6.03
1996-06-30 5.72
1996-07-31 5.78
1996-08-31 5.765
1996-09-30 5.845
1996-10-31 6.03
1996-11-30 5.91
1996-12-31 6.06
1997-01-31 6.095
1997-02-28 5.91
1997-03-31 6.03
1997-04-30 5.91
1997-05-31 6.28
1997-06-30 6.47
1997-07-31 6.78
1997-08-31 7.095
1997-09-30 7.045
1997-10-31 7.22
1997-11-30 7.25
1997-12-31 7.345
1998-01-31 7.44
1998-02-28 7.345
1998-03-31 7.47
1998-04-30 7.25
1998-05-31 7.28
1998-06-30 7.4063
1998-07-31 7.5
1998-08-31 7.28
1998-09-30 7.44
1998-10-31 7.565
1998-11-30 6.845
1998-12-31 6.345
1999-01-31 6.03
1999-02-28 5.715
1999-03-31 5.375
1999-04-30 5.28
1999-05-31 5.28
1999-06-30 5
1999-07-31 5.28
1999-08-31 4.875
1999-09-30 5.315
1999-10-31 5.065
1999-11-30 5.53
1999-12-31 3.6875
2000-01-31 6.125
2000-02-29 6.0313
2000-03-31 5.875
2000-04-30 5.8438
2000-05-31 6.0313
2000-06-30 5.7813
2000-07-31 5.8438
2000-08-31 5.7813
2000-09-30 6.0313
2000-10-31 5.9063
2000-11-30 5.9063
2000-12-31 5.2188
2001-01-31 5.9688
2001-02-28 5.75
2001-03-31 6.2813
2001-04-30 5.4063
2001-05-31 5.4688
2001-06-30 5
2001-07-31 5.3125
2001-08-31 4.4688
2001-09-30 5.125
2001-10-31 4.1875
2001-11-30 4.25
2001-12-31 4.4688
2002-01-31 3.8438
2002-02-28 3.875
2002-03-31 3.4688
2002-04-30 3.9063
2002-05-31 4
2002-06-30 3.7188
2002-07-31 3.9688
2002-08-31 3.9688
2002-09-30 3.7188
2002-10-31 3.6875
2002-11-30 3.9688
2002-12-31 4.2813
2003-01-31 3.9688
2003-02-28 3.6875
2003-03-31 3.9063
2003-04-30 3.5625
2003-05-31 3.8281
2003-06-30 3.625
2003-07-31 3.375
2003-08-31 3.4688
2003-09-30 3.5
2003-10-31 3.25
2003-11-30 3.6875
2003-12-31 3.6875
2004-01-31 3.5
2004-02-29 3.9375
2004-03-31 3.9063
2004-04-30 3.875
2004-05-31 4.3125
2004-06-30 4.5938
2004-07-31 4.3125
2004-08-31 4.7656
2004-09-30 4.7656
2004-10-31 4.7188
2004-11-30 4.8
2004-12-31 4.755
2005-01-31 4.715
2005-02-28 4.8
2005-03-31 4.775
2005-04-30 4.765
2005-05-31 4.76
2005-06-30 4.79
2005-07-31 4.68
2005-08-31 4.545
2005-09-30 4.51
2005-10-31 4.5
2005-11-30 4.545
2005-12-31 4.715
2006-01-31 4.545
2006-02-28 4.485
2006-03-31 4.59
2006-04-30 4.485
2006-05-31 4.6
2006-06-30 4.615
2006-07-31 4.605
2006-08-31 4.88
2006-09-30 4.895
2006-10-31 4.865
2006-11-30 5.09
2006-12-31 5.23
2007-01-31 5.325
2007-02-28 5.33
2007-03-31 5.335
2007-04-30 5.305
2007-05-31 5.57
2007-06-30 6
2007-07-31 5.815
2007-08-31 6.2015
2007-09-30 5.95
2007-10-31 5.825
2007-11-30 5.95
2007-12-31 5.8
2008-01-31 5.525
2008-02-29 5.315
2008-03-31 5.475
2008-04-30 5.09
2008-05-31 5.085
2008-06-30 5.13
2008-07-31 5.055
2008-08-31 5.05
2008-09-30 5.85
2008-10-31 4.525
2008-11-30 2.85
2008-12-31 1.75
2009-01-31 1.525
2009-02-28 1
2009-03-31 0.65
2009-04-30 0.5
2009-05-31 0.55
2009-06-30 0.525
2009-07-31 0.525
2009-08-31 0.525
2009-09-30 0.515
2009-10-31 0.5
2009-11-30 0.5
2009-12-31 0.5
2010-01-31 0.5
2010-02-28 0.475
2010-03-31 0.475
2010-04-30 0.5
2010-05-31 0.535
2010-06-30 0.535
2010-07-31 0.535
2010-08-31 0.535
2010-09-30 0.535
2010-10-31 0.54
2010-11-30 0.575
2010-12-31 0.575
2011-01-31 0.575
2011-02-28 0.575
2011-03-31 0.55
2011-04-30 0.585
2011-05-31 0.585
2011-06-30 0.625
2011-07-31 0.575
2011-08-31 0.6
2011-09-30 0.65
2011-10-31 0.65
2011-11-30 0.675
2011-12-31 0.65
2012-01-31 0.65
2012-02-29 0.625
2012-03-31 0.6
2012-04-30 0.575
2012-05-31 0.565
2012-06-30 0.56
2012-07-31 0.525
2012-08-31 0.475
2012-09-30 0.475
2012-10-31 0.475
2012-11-30 0.475
2012-12-31 0.45
2013-01-31 0.475
2013-02-28 0.475
2013-03-31 0.475
2013-04-30 0.475
2013-05-31 0.475
2013-06-30 0.475
2013-07-31 0.475
2013-08-31 0.475
2013-09-30 0.475
2013-10-31 0.475
2013-11-30 0.475
2013-12-31 0.475
2014-01-31 0.475
2014-02-28 0.475
2014-03-31 0.475
2014-04-30 0.475
2014-05-31 0.475
2014-06-30 0.475
2014-07-31 0.475
2014-08-31 0.475
2014-09-30 0.45
2014-10-31 0.45
2014-11-30 0.45
2014-12-31 0.45
2015-01-31 0.45
2015-02-28 0.45
2015-03-31 0.45
2015-04-30 0.45
2015-05-31 0.45
2015-06-30 0.45
2015-07-31 0.45
2015-08-31 0.45
2015-09-30 0.425
2015-10-31 0.45
2015-11-30 0.45
2015-12-31 0.425
2016-01-31 0.45
2016-02-29 0.45
2016-03-31 0.45
2016-04-30 0.475
2016-05-31 0.475
2016-06-30 0.45
2016-07-31 0.45
2016-08-31 0.24
2016-09-30 0.235
2016-10-31 0.24
2016-11-30 0.235
2016-12-31 0.24
2017-01-31 0.24
2017-02-28 0.24
2017-03-31 0.23
2017-04-30 0.23
2017-05-31 0.23
2017-06-30 0.23
2017-07-31 0.23
2017-08-31 0.24
2017-09-30 0.24
2017-10-31 0.27
2017-11-30 0.36