Monthly Percent
1978-01-31 6.25
1978-02-28 6.75
1978-03-31 6.6875
1978-04-30 8.1875
1978-05-31 9.4375
1978-06-30 10.0938
1978-07-31 9.5938
1978-08-31 9.375
1978-09-30 9.625
1978-10-31 11.25
1978-11-30 12.125
1978-12-31 12.5
1979-01-31 13.1875
1979-02-28 12.3125
1979-03-31 11.7813
1979-04-30 11.625
1979-05-31 11.8125
1979-06-30 13.9375
1979-07-31 14.2188
1979-08-31 14.1875
1979-09-30 14.125
1979-10-31 14.375
1979-11-30 16.875
1979-12-31 16.875
1980-01-31 17.75
1980-02-29 18.2188
1980-03-31 18.375
1980-04-30 17.125
1980-05-31 16.9688
1980-06-30 16.9375
1980-07-31 16
1980-08-31 16.6563
1980-09-30 15.6407
1980-10-31 16.6875
1980-11-30 14.5
1980-12-31 14.7813
1981-01-31 13.3438
1981-02-28 12.5938
1981-03-31 12.4375
1981-04-30 12.3125
1981-05-31 12.4688
1981-06-30 12.5
1981-07-31 14.4688
1981-08-31 13.9375
1981-09-30 16.7188
1981-10-31 15.7188
1981-11-30 14.9688
1981-12-31 15.625
1982-01-31 14.375
1982-02-28 13.8125
1982-03-31 13.375
1982-04-30 13.6875
1982-05-31 13.3125
1982-06-30 12.9375
1982-07-31 11.4688
1982-08-31 10.7813
1982-09-30 10.375
1982-10-31 9.1875
1982-11-30 10.125
1982-12-31 10.25
1983-01-31 11.5782
1983-02-28 11.2188
1983-03-31 10.6875
1983-04-30 10.0938
1983-05-31 10.1875
1983-06-30 9.6876
1983-07-31 9.875
1983-08-31 9.8282
1983-09-30 9.4688
1983-10-31 9.2813
1983-11-30 9.2033
1983-12-31 9.297
1984-01-31 9.3126
1984-02-29 9.1876
1984-03-31 8.844
1984-04-30 8.9063
1984-05-31 9.6563
1984-06-30 9.375
1984-07-31 12.1875
1984-08-31 10.5625
1984-09-30 10.5938
1984-10-31 10.3125
1984-11-30 9.6875
1984-12-31 9.8125
1985-01-31 13.4375
1985-02-28 13.8757
1985-03-31 13
1985-04-30 12.4375
1985-05-31 12.4375
1985-06-30 12.375
1985-07-31 11.3125
1985-08-31 11.4375
1985-09-30 11.375
1985-10-31 11.5
1985-11-30 11.3438
1985-12-31 11.8125
1986-01-31 12.75
1986-02-28 12.19
1986-03-31 11.25
1986-04-30 10.25
1986-05-31 9.69
1986-06-30 9.66
1986-07-31 9.88
1986-08-31 9.75
1986-09-30 11
1986-10-31 11.06
1986-11-30 11.19
1986-12-31 11.13
1987-01-31 10.94
1987-02-28 10.59
1987-03-31 9.81
1987-04-30 9.25
1987-05-31 8.69
1987-06-30 9.06
1987-07-31 9.25
1987-08-31 10.19
1987-09-30 10.125
1987-10-31 8.94
1987-11-30 8.815
1987-12-31 8.75
1988-01-31 8.595
1988-02-29 9.125
1988-03-31 8.565
1988-04-30 8.315
1988-05-31 7.5
1988-06-30 9.75
1988-07-31 10.565
1988-08-31 12
1988-09-30 11.815
1988-10-31 11.94
1988-11-30 13.03
1988-12-31 13
1989-01-31 12.94
1989-02-28 13.25
1989-03-31 12.94
1989-04-30 12.815
1989-05-31 14.065
1989-06-30 14
1989-07-31 13.815
1989-08-31 13.91
1989-09-30 14.315
1989-10-31 15.125
1989-11-30 15.125
1989-12-31 15.06
1990-01-31 15.03
1990-02-28 15.06
1990-03-31 15.16
1990-04-30 15.19
1990-05-31 15.03
1990-06-30 14.91
1990-07-31 14.97
1990-08-31 14.94
1990-09-30 14.91
1990-10-31 13.69
1990-11-30 13.41
1990-12-31 13.845
1991-01-31 13.78
1991-02-28 12.645
1991-03-31 12.265
1991-04-30 11.61
1991-05-31 11.265
1991-06-30 11.16
1991-07-31 11
1991-08-31 10.66
1991-09-30 10.22
1991-10-31 10.31
1991-11-30 10.515
1991-12-31 10.845
1992-01-31 10.47
1992-02-29 10.19
1992-03-31 10.69
1992-04-30 10.375
1992-05-31 9.895
1992-06-30 9.985
1992-07-31 10.145
1992-08-31 10.375
1992-09-30 8.845
1992-10-31 7.28
1992-11-30 7.095
1992-12-31 6.91
1993-01-31 6.11
1993-02-28 5.94
1993-03-31 5.845
1993-04-30 5.91
1993-05-31 5.78
1993-06-30 5.795
1993-07-31 5.78
1993-08-31 5.735
1993-09-30 5.845
1993-10-31 5.485
1993-11-30 5.28
1993-12-31 5.235
1994-01-31 5.28
1994-02-28 5.075
1994-03-31 5.22
1994-04-30 5.095
1994-05-31 5.075
1994-06-30 5.075
1994-07-31 5.28
1994-08-31 5.41
1994-09-30 5.69
1994-10-31 5.865
1994-11-30 6.03
1994-12-31 6.425
1995-01-31 6.645
1995-02-28 6.645
1995-03-31 6.545
1995-04-30 6.845
1995-05-31 6.53
1995-06-30 6.78
1995-07-31 6.735
1995-08-31 6.69
1995-09-30 6.72
1995-10-31 6.645
1995-11-30 6.47
1995-12-31 6.455
1996-01-31 6.175
1996-02-29 6.075
1996-03-31 6.01
1996-04-30 5.97
1996-05-31 5.985
1996-06-30 5.705
1996-07-31 5.705
1996-08-31 5.675
1996-09-30 5.845
1996-10-31 6.11
1996-11-30 6.28
1996-12-31 6.41
1997-01-31 6.16
1997-02-28 6.095
1997-03-31 6.265
1997-04-30 6.44
1997-05-31 6.485
1997-06-30 6.795
1997-07-31 7
1997-08-31 7.22
1997-09-30 7.2031
1997-10-31 7.22
1997-11-30 7.575
1997-12-31 7.515
1998-01-31 7.425
1998-02-28 7.44
1998-03-31 7.4844
1998-04-30 7.36
1998-05-31 7.3594
1998-06-30 7.75
1998-07-31 7.66
1998-08-31 7.545
1998-09-30 7.22
1998-10-31 7.03
1998-11-30 6.72
1998-12-31 6.125
1999-01-31 5.66
1999-02-28 5.325
1999-03-31 5.175
1999-04-30 5.19
1999-05-31 5.235
1999-06-30 5.045
1999-07-31 5.125
1999-08-31 5.095
1999-09-30 5.41
1999-10-31 5.845
1999-11-30 5.845
1999-12-31 5.9063
2000-01-31 6.0626
2000-02-29 6.1251
2000-03-31 6.1407
2000-04-30 6.2344
2000-05-31 6.1407
2000-06-30 6.0938
2000-07-31 6.1407
2000-08-31 6.1094
2000-09-30 6.0626
2000-10-31 6.0157
2000-11-30 5.9376
2000-12-31 5.7813
2001-01-31 5.6876
2001-02-28 5.5157
2001-03-31 5.415
2001-04-30 5.24
2001-05-31 5.165
2001-06-30 5.18
2001-07-31 5.165
2001-08-31 4.835
2001-09-30 4.46
2001-10-31 4.115
2001-11-30 3.94
2001-12-31 4
2002-01-31 3.98
2002-02-28 3.93
2002-03-31 4.1
2002-04-30 4.055
2002-05-31 4.1
2002-06-30 4.06
2002-07-31 3.93
2002-08-31 3.92
2002-09-30 3.855
2002-10-31 3.86
2002-11-30 3.945
2002-12-31 3.92
2003-01-31 3.885
2003-02-28 3.61
2003-03-31 3.58
2003-04-30 3.55
2003-05-31 3.55
2003-06-30 3.555
2003-07-31 3.37
2003-08-31 3.55
2003-09-30 3.64
2003-10-31 3.86
2003-11-30 3.91
2003-12-31 3.965
2004-01-31 4.07
2004-02-29 4.13
2004-03-31 4.31
2004-04-30 4.36
2004-05-31 4.57
2004-06-30 4.76
2004-07-31 4.875
2004-08-31 4.89
2004-09-30 4.84
2004-10-31 4.83
2004-11-30 4.78
2004-12-31 4.8
2005-01-31 4.79
2005-02-28 4.88
2005-03-31 4.9
2005-04-30 4.87
2005-05-31 4.8
2005-06-30 4.71
2005-07-31 4.55
2005-08-31 4.53
2005-09-30 4.54
2005-10-31 4.55
2005-11-30 4.56
2005-12-31 4.59
2006-01-31 4.53
2006-02-28 4.51
2006-03-31 4.55
2006-04-30 4.61
2006-05-31 4.665
2006-06-30 4.72
2006-07-31 4.725
2006-08-31 4.935
2006-09-30 5.035
2006-10-31 5.145
2006-11-30 5.205
2006-12-31 5.275
2007-01-31 5.5
2007-02-28 5.485
2007-03-31 5.675
2007-04-30 5.785
2007-05-31 5.905
2007-06-30 6.075
2007-07-31 6.105
2007-08-31 6.54
2007-09-30 6.23
2007-10-31 6.2
2007-11-30 6.55
2007-12-31 5.95
2008-01-31 5.54
2008-02-29 5.68
2008-03-31 5.98
2008-04-30 5.8
2008-05-31 5.83
2008-06-30 5.91
2008-07-31 5.76
2008-08-31 5.73
2008-09-30 6.225
2008-10-31 5.95
2008-11-30 3.975
2008-12-31 2.775
2009-01-31 2.125
2009-02-28 2.025
2009-03-31 1.575
2009-04-30 1.325
2009-05-31 1.225
2009-06-30 1.075
2009-07-31 0.775
2009-08-31 0.575
2009-09-30 0.475
2009-10-31 0.575
2009-11-30 0.575
2009-12-31 0.575
2010-01-31 0.575
2010-02-28 0.575
2010-03-31 0.625
2010-04-30 0.625
2010-05-31 0.725
2010-06-30 0.775
2010-07-31 0.775
2010-08-31 0.725
2010-09-30 0.725
2010-10-31 0.725
2010-11-30 0.725
2010-12-31 0.825
2011-01-31 0.825
2011-02-28 0.825
2011-03-31 0.875
2011-04-30 0.875
2011-05-31 0.875
2011-06-30 0.875
2011-07-31 0.875
2011-08-31 0.975
2011-09-30 1.045
2011-10-31 1.075
2011-11-30 1.125
2011-12-31 1.175
2012-01-31 1.175
2012-02-29 1.145
2012-03-31 1.105
2012-04-30 1.095
2012-05-31 1.075
2012-06-30 0.965
2012-07-31 0.775
2012-08-31 0.725
2012-09-30 0.575
2012-10-31 0.575
2012-11-30 0.575
2012-12-31 0.575
2013-01-31 0.575
2013-02-28 0.575
2013-03-31 0.565
2013-04-30 0.575
2013-05-31 0.525
2013-06-30 0.525
2013-07-31 0.525
2013-08-31 0.525
2013-09-30 0.525
2013-10-31 0.525
2013-11-30 0.575
2013-12-31 0.575
2014-01-31 0.575
2014-02-28 0.575
2014-03-31 0.575
2014-04-30 0.575
2014-05-31 0.575
2014-06-30 0.575
2014-07-31 0.575
2014-08-31 0.575
2014-09-30 0.55
2014-10-31 0.55
2014-11-30 0.575
2014-12-31 0.55
2015-01-31 0.55
2015-02-28 0.55
2015-03-31 0.55
2015-04-30 0.55
2015-05-31 0.55
2015-06-30 0.55
2015-07-31 0.55
2015-08-31 0.55
2015-09-30 0.55
2015-10-31 0.55
2015-11-30 0.55
2015-12-31 0.65
2016-01-31 0.65
2016-02-29 0.65
2016-03-31 0.65
2016-04-30 0.65
2016-05-31 0.65
2016-06-30 0.55
2016-07-31 0.475
2016-08-31 0.35
2016-09-30 0.35
2016-10-31 0.35
2016-11-30 0.35
2016-12-31 0.35
2017-01-31 0.35
2017-02-28 0.35
2017-03-31 0.35
2017-04-30 0.35
2017-05-31 0.35
2017-06-30 0.35
2017-07-31 0.3
2017-08-31 0.3
2017-09-30 0.3
2017-10-31 0.3
2017-11-30 0.5
2017-12-31 0.5
2018-01-31 0.5
2018-02-28 0.5
2018-03-31 0.7
2018-04-30 0.7
2018-05-31 0.65
2018-06-30 0.65