Source: https://aidb.si/d/federal-funds-rate — Source: Board of Governors of the Federal Reserve System, H.15 Selected Interest Rates (series RIFSPFF_N.M and RIFSPBLP_N.M).
| Month | Effective federal funds rate (%) | Bank prime loan rate (%) |
|---|---|---|
| 2026-09 | 3.75 | 6.87 |
| 2026-08 | 3.63 | 6.75 |
| 2026-07 | 3.63 | 6.75 |
| 2026-06 | 3.63 | 6.75 |
| 2026-05 | 3.63 | 6.75 |
| 2026-04 | 3.64 | 6.75 |
| 2026-03 | 3.64 | 6.75 |
| 2026-02 | 3.64 | 6.75 |
| 2026-01 | 3.64 | 6.75 |
| 2025-12 | 3.72 | 6.83 |
| 2025-11 | 3.88 | 7 |
| 2025-10 | 4.09 | 7.23 |
| 2025-09 | 4.22 | 7.38 |
| 2025-08 | 4.33 | 7.5 |
| 2025-07 | 4.33 | 7.5 |
| 2025-06 | 4.33 | 7.5 |
| 2025-05 | 4.33 | 7.5 |
| 2025-04 | 4.33 | 7.5 |
| 2025-03 | 4.33 | 7.5 |
| 2025-02 | 4.33 | 7.5 |
| 2025-01 | 4.33 | 7.5 |
| 2024-12 | 4.48 | 7.65 |
| 2024-11 | 4.64 | 7.81 |
| 2024-10 | 4.83 | 8 |
| 2024-09 | 5.13 | 8.3 |
| 2024-08 | 5.33 | 8.5 |
| 2024-07 | 5.33 | 8.5 |
| 2024-06 | 5.33 | 8.5 |
| 2024-05 | 5.33 | 8.5 |
| 2024-04 | 5.33 | 8.5 |
| 2024-03 | 5.33 | 8.5 |
| 2024-02 | 5.33 | 8.5 |
| 2024-01 | 5.33 | 8.5 |
| 2023-12 | 5.33 | 8.5 |
| 2023-11 | 5.33 | 8.5 |
| 2023-10 | 5.33 | 8.5 |
| 2023-09 | 5.33 | 8.5 |
| 2023-08 | 5.33 | 8.5 |
| 2023-07 | 5.12 | 8.29 |
| 2023-06 | 5.08 | 8.25 |
| 2023-05 | 5.06 | 8.23 |
| 2023-04 | 4.83 | 8 |
| 2023-03 | 4.65 | 7.82 |
| 2023-02 | 4.57 | 7.74 |
| 2023-01 | 4.33 | 7.5 |
| 2022-12 | 4.1 | 7.27 |
| 2022-11 | 3.78 | 6.95 |
| 2022-10 | 3.08 | 6.25 |
| 2022-09 | 2.56 | 5.73 |
| 2022-08 | 2.33 | 5.5 |
| 2022-07 | 1.68 | 4.85 |
| 2022-06 | 1.21 | 4.38 |
| 2022-05 | 0.77 | 3.94 |
| 2022-04 | 0.33 | 3.5 |
| 2022-03 | 0.2 | 3.37 |
| 2022-02 | 0.08 | 3.25 |
| 2022-01 | 0.08 | 3.25 |
| 2021-12 | 0.08 | 3.25 |
| 2021-11 | 0.08 | 3.25 |
| 2021-10 | 0.08 | 3.25 |
| 2021-09 | 0.08 | 3.25 |
| 2021-08 | 0.09 | 3.25 |
| 2021-07 | 0.1 | 3.25 |
| 2021-06 | 0.08 | 3.25 |
| 2021-05 | 0.06 | 3.25 |
| 2021-04 | 0.07 | 3.25 |
| 2021-03 | 0.07 | 3.25 |
| 2021-02 | 0.08 | 3.25 |
| 2021-01 | 0.09 | 3.25 |
| 2020-12 | 0.09 | 3.25 |
| 2020-11 | 0.09 | 3.25 |
| 2020-10 | 0.09 | 3.25 |
| 2020-09 | 0.09 | 3.25 |
| 2020-08 | 0.1 | 3.25 |
| 2020-07 | 0.09 | 3.25 |
| 2020-06 | 0.08 | 3.25 |
| 2020-05 | 0.05 | 3.25 |
| 2020-04 | 0.05 | 3.25 |
| 2020-03 | 0.65 | 3.78 |
| 2020-02 | 1.58 | 4.75 |
| 2020-01 | 1.55 | 4.75 |
| 2019-12 | 1.55 | 4.75 |
| 2019-11 | 1.55 | 4.75 |
| 2019-10 | 1.83 | 4.99 |
| 2019-09 | 2.04 | 5.15 |
| 2019-08 | 2.13 | 5.25 |
| 2019-07 | 2.4 | 5.5 |
| 2019-06 | 2.38 | 5.5 |
| 2019-05 | 2.39 | 5.5 |
| 2019-04 | 2.42 | 5.5 |
| 2019-03 | 2.41 | 5.5 |
| 2019-02 | 2.4 | 5.5 |
| 2019-01 | 2.4 | 5.5 |
| 2018-12 | 2.27 | 5.35 |
| 2018-11 | 2.2 | 5.25 |
| 2018-10 | 2.19 | 5.25 |
| 2018-09 | 1.95 | 5.03 |
| 2018-08 | 1.91 | 5 |
| 2018-07 | 1.91 | 5 |
| 2018-06 | 1.82 | 4.89 |
| 2018-05 | 1.7 | 4.75 |
| 2018-04 | 1.69 | 4.75 |
| 2018-03 | 1.51 | 4.58 |
| 2018-02 | 1.42 | 4.5 |
| 2018-01 | 1.41 | 4.5 |
| 2017-12 | 1.3 | 4.4 |
| 2017-11 | 1.16 | 4.25 |
| 2017-10 | 1.15 | 4.25 |
| 2017-09 | 1.15 | 4.25 |
| 2017-08 | 1.16 | 4.25 |
| 2017-07 | 1.15 | 4.25 |
| 2017-06 | 1.04 | 4.13 |
| 2017-05 | 0.91 | 4 |
| 2017-04 | 0.9 | 4 |
| 2017-03 | 0.79 | 3.88 |
| 2017-02 | 0.66 | 3.75 |
| 2017-01 | 0.65 | 3.75 |
| 2016-12 | 0.54 | 3.64 |
| 2016-11 | 0.41 | 3.5 |
| 2016-10 | 0.4 | 3.5 |
| 2016-09 | 0.4 | 3.5 |
| 2016-08 | 0.4 | 3.5 |
| 2016-07 | 0.39 | 3.5 |
| 2016-06 | 0.38 | 3.5 |
| 2016-05 | 0.37 | 3.5 |
| 2016-04 | 0.37 | 3.5 |
| 2016-03 | 0.36 | 3.5 |
| 2016-02 | 0.38 | 3.5 |
| 2016-01 | 0.34 | 3.5 |
| 2015-12 | 0.24 | 3.37 |
| 2015-11 | 0.12 | 3.25 |
| 2015-10 | 0.12 | 3.25 |
| 2015-09 | 0.14 | 3.25 |
| 2015-08 | 0.14 | 3.25 |
| 2015-07 | 0.13 | 3.25 |
| 2015-06 | 0.13 | 3.25 |
| 2015-05 | 0.12 | 3.25 |
| 2015-04 | 0.12 | 3.25 |
| 2015-03 | 0.11 | 3.25 |
| 2015-02 | 0.11 | 3.25 |
| 2015-01 | 0.11 | 3.25 |
| 2014-12 | 0.12 | 3.25 |
| 2014-11 | 0.09 | 3.25 |
| 2014-10 | 0.09 | 3.25 |
| 2014-09 | 0.09 | 3.25 |
| 2014-08 | 0.09 | 3.25 |
| 2014-07 | 0.09 | 3.25 |
| 2014-06 | 0.1 | 3.25 |
| 2014-05 | 0.09 | 3.25 |
| 2014-04 | 0.09 | 3.25 |
| 2014-03 | 0.08 | 3.25 |
| 2014-02 | 0.07 | 3.25 |
| 2014-01 | 0.07 | 3.25 |
| 2013-12 | 0.09 | 3.25 |
| 2013-11 | 0.08 | 3.25 |
| 2013-10 | 0.09 | 3.25 |
| 2013-09 | 0.08 | 3.25 |
| 2013-08 | 0.08 | 3.25 |
| 2013-07 | 0.09 | 3.25 |
| 2013-06 | 0.09 | 3.25 |
| 2013-05 | 0.11 | 3.25 |
| 2013-04 | 0.15 | 3.25 |
| 2013-03 | 0.14 | 3.25 |
| 2013-02 | 0.15 | 3.25 |
| 2013-01 | 0.14 | 3.25 |
| 2012-12 | 0.16 | 3.25 |
| 2012-11 | 0.16 | 3.25 |
| 2012-10 | 0.16 | 3.25 |
| 2012-09 | 0.14 | 3.25 |
| 2012-08 | 0.13 | 3.25 |
| 2012-07 | 0.16 | 3.25 |
| 2012-06 | 0.16 | 3.25 |
| 2012-05 | 0.16 | 3.25 |
| 2012-04 | 0.14 | 3.25 |
| 2012-03 | 0.13 | 3.25 |
| 2012-02 | 0.1 | 3.25 |
| 2012-01 | 0.08 | 3.25 |
| 2011-12 | 0.07 | 3.25 |
| 2011-11 | 0.08 | 3.25 |
| 2011-10 | 0.07 | 3.25 |
| 2011-09 | 0.08 | 3.25 |
| 2011-08 | 0.1 | 3.25 |
| 2011-07 | 0.07 | 3.25 |
| 2011-06 | 0.09 | 3.25 |
| 2011-05 | 0.09 | 3.25 |
| 2011-04 | 0.1 | 3.25 |
| 2011-03 | 0.14 | 3.25 |
| 2011-02 | 0.16 | 3.25 |
| 2011-01 | 0.17 | 3.25 |
| 2010-12 | 0.18 | 3.25 |
| 2010-11 | 0.19 | 3.25 |
| 2010-10 | 0.19 | 3.25 |
| 2010-09 | 0.19 | 3.25 |
| 2010-08 | 0.19 | 3.25 |
| 2010-07 | 0.18 | 3.25 |
| 2010-06 | 0.18 | 3.25 |
| 2010-05 | 0.2 | 3.25 |
| 2010-04 | 0.2 | 3.25 |
| 2010-03 | 0.16 | 3.25 |
| 2010-02 | 0.13 | 3.25 |
| 2010-01 | 0.11 | 3.25 |
| 2009-12 | 0.12 | 3.25 |
| 2009-11 | 0.12 | 3.25 |
| 2009-10 | 0.12 | 3.25 |
| 2009-09 | 0.15 | 3.25 |
| 2009-08 | 0.16 | 3.25 |
| 2009-07 | 0.16 | 3.25 |
| 2009-06 | 0.21 | 3.25 |
| 2009-05 | 0.18 | 3.25 |
| 2009-04 | 0.15 | 3.25 |
| 2009-03 | 0.18 | 3.25 |
| 2009-02 | 0.22 | 3.25 |
| 2009-01 | 0.15 | 3.25 |
| 2008-12 | 0.16 | 3.61 |
| 2008-11 | 0.39 | 4 |
| 2008-10 | 0.97 | 4.56 |
| 2008-09 | 1.81 | 5 |
| 2008-08 | 2 | 5 |
| 2008-07 | 2.01 | 5 |
| 2008-06 | 2 | 5 |
| 2008-05 | 1.98 | 5 |
| 2008-04 | 2.28 | 5.24 |
| 2008-03 | 2.61 | 5.66 |
| 2008-02 | 2.98 | 6 |
| 2008-01 | 3.94 | 6.98 |
| 2007-12 | 4.24 | 7.33 |
| 2007-11 | 4.49 | 7.5 |
| 2007-10 | 4.76 | 7.74 |
| 2007-09 | 4.94 | 8.03 |
| 2007-08 | 5.02 | 8.25 |
| 2007-07 | 5.26 | 8.25 |
| 2007-06 | 5.25 | 8.25 |
| 2007-05 | 5.25 | 8.25 |
| 2007-04 | 5.25 | 8.25 |
| 2007-03 | 5.26 | 8.25 |
| 2007-02 | 5.26 | 8.25 |
| 2007-01 | 5.25 | 8.25 |
| 2006-12 | 5.24 | 8.25 |
| 2006-11 | 5.25 | 8.25 |
| 2006-10 | 5.25 | 8.25 |
| 2006-09 | 5.25 | 8.25 |
| 2006-08 | 5.25 | 8.25 |
| 2006-07 | 5.24 | 8.25 |
| 2006-06 | 4.99 | 8.02 |
| 2006-05 | 4.94 | 7.93 |
| 2006-04 | 4.79 | 7.75 |
| 2006-03 | 4.59 | 7.53 |
| 2006-02 | 4.49 | 7.5 |
| 2006-01 | 4.29 | 7.26 |
| 2005-12 | 4.16 | 7.15 |
| 2005-11 | 4 | 7 |
| 2005-10 | 3.78 | 6.75 |
| 2005-09 | 3.62 | 6.59 |
| 2005-08 | 3.5 | 6.44 |
| 2005-07 | 3.26 | 6.25 |
| 2005-06 | 3.04 | 6.01 |
| 2005-05 | 3 | 5.98 |
| 2005-04 | 2.79 | 5.75 |
| 2005-03 | 2.63 | 5.58 |
| 2005-02 | 2.5 | 5.49 |
| 2005-01 | 2.28 | 5.25 |
| 2004-12 | 2.16 | 5.15 |
| 2004-11 | 1.93 | 4.93 |
| 2004-10 | 1.76 | 4.75 |
| 2004-09 | 1.61 | 4.58 |
| 2004-08 | 1.43 | 4.43 |
| 2004-07 | 1.26 | 4.25 |
| 2004-06 | 1.03 | 4.01 |
| 2004-05 | 1 | 4 |
| 2004-04 | 1 | 4 |
| 2004-03 | 1 | 4 |
| 2004-02 | 1.01 | 4 |
| 2004-01 | 1 | 4 |
| 2003-12 | 0.98 | 4 |
| 2003-11 | 1 | 4 |
| 2003-10 | 1.01 | 4 |
| 2003-09 | 1.01 | 4 |
| 2003-08 | 1.03 | 4 |
| 2003-07 | 1.01 | 4 |
| 2003-06 | 1.22 | 4.22 |
| 2003-05 | 1.26 | 4.25 |
| 2003-04 | 1.26 | 4.25 |
| 2003-03 | 1.25 | 4.25 |
| 2003-02 | 1.26 | 4.25 |
| 2003-01 | 1.24 | 4.25 |
| 2002-12 | 1.24 | 4.25 |
| 2002-11 | 1.34 | 4.35 |
| 2002-10 | 1.75 | 4.75 |
| 2002-09 | 1.75 | 4.75 |
| 2002-08 | 1.74 | 4.75 |
| 2002-07 | 1.73 | 4.75 |
| 2002-06 | 1.75 | 4.75 |
| 2002-05 | 1.75 | 4.75 |
| 2002-04 | 1.75 | 4.75 |
| 2002-03 | 1.73 | 4.75 |
| 2002-02 | 1.74 | 4.75 |
| 2002-01 | 1.73 | 4.75 |
| 2001-12 | 1.82 | 4.84 |
| 2001-11 | 2.09 | 5.1 |
| 2001-10 | 2.49 | 5.53 |
| 2001-09 | 3.07 | 6.28 |
| 2001-08 | 3.65 | 6.67 |
| 2001-07 | 3.77 | 6.75 |
| 2001-06 | 3.97 | 6.98 |
| 2001-05 | 4.21 | 7.24 |
| 2001-04 | 4.8 | 7.8 |
| 2001-03 | 5.31 | 8.32 |
| 2001-02 | 5.49 | 8.5 |
| 2001-01 | 5.98 | 9.05 |
| 2000-12 | 6.4 | 9.5 |
| 2000-11 | 6.51 | 9.5 |
| 2000-10 | 6.51 | 9.5 |
| 2000-09 | 6.52 | 9.5 |
| 2000-08 | 6.5 | 9.5 |
| 2000-07 | 6.54 | 9.5 |
| 2000-06 | 6.53 | 9.5 |
| 2000-05 | 6.27 | 9.24 |
| 2000-04 | 6.02 | 9 |
| 2000-03 | 5.85 | 8.83 |
| 2000-02 | 5.73 | 8.73 |
| 2000-01 | 5.45 | 8.5 |
| 1999-12 | 5.3 | 8.5 |
| 1999-11 | 5.42 | 8.37 |
| 1999-10 | 5.2 | 8.25 |
| 1999-09 | 5.22 | 8.25 |
| 1999-08 | 5.07 | 8.06 |
| 1999-07 | 4.99 | 8 |
| 1999-06 | 4.76 | 7.75 |
| 1999-05 | 4.74 | 7.75 |
| 1999-04 | 4.74 | 7.75 |
| 1999-03 | 4.81 | 7.75 |
| 1999-02 | 4.76 | 7.75 |
| 1999-01 | 4.63 | 7.75 |
| 1998-12 | 4.68 | 7.75 |
| 1998-11 | 4.83 | 7.89 |
| 1998-10 | 5.07 | 8.12 |
| 1998-09 | 5.51 | 8.49 |
| 1998-08 | 5.55 | 8.5 |
| 1998-07 | 5.54 | 8.5 |
| 1998-06 | 5.56 | 8.5 |
| 1998-05 | 5.49 | 8.5 |
| 1998-04 | 5.45 | 8.5 |
| 1998-03 | 5.49 | 8.5 |
| 1998-02 | 5.51 | 8.5 |
| 1998-01 | 5.56 | 8.5 |
| 1997-12 | 5.5 | 8.5 |
| 1997-11 | 5.52 | 8.5 |
| 1997-10 | 5.5 | 8.5 |
| 1997-09 | 5.54 | 8.5 |
| 1997-08 | 5.54 | 8.5 |
| 1997-07 | 5.52 | 8.5 |
| 1997-06 | 5.56 | 8.5 |
| 1997-05 | 5.5 | 8.5 |
| 1997-04 | 5.51 | 8.5 |
| 1997-03 | 5.39 | 8.3 |
| 1997-02 | 5.19 | 8.25 |
| 1997-01 | 5.25 | 8.25 |
| 1996-12 | 5.29 | 8.25 |
| 1996-11 | 5.31 | 8.25 |
| 1996-10 | 5.24 | 8.25 |
| 1996-09 | 5.3 | 8.25 |
| 1996-08 | 5.22 | 8.25 |
| 1996-07 | 5.4 | 8.25 |
| 1996-06 | 5.27 | 8.25 |
| 1996-05 | 5.24 | 8.25 |
| 1996-04 | 5.22 | 8.25 |
| 1996-03 | 5.31 | 8.25 |
| 1996-02 | 5.22 | 8.25 |
| 1996-01 | 5.56 | 8.5 |
| 1995-12 | 5.6 | 8.65 |
| 1995-11 | 5.8 | 8.75 |
| 1995-10 | 5.76 | 8.75 |
| 1995-09 | 5.8 | 8.75 |
| 1995-08 | 5.74 | 8.75 |
| 1995-07 | 5.85 | 8.8 |
| 1995-06 | 6 | 9 |
| 1995-05 | 6.01 | 9 |
| 1995-04 | 6.05 | 9 |
| 1995-03 | 5.98 | 9 |
| 1995-02 | 5.92 | 9 |
| 1995-01 | 5.53 | 8.5 |
| 1994-12 | 5.45 | 8.5 |
| 1994-11 | 5.29 | 8.15 |
| 1994-10 | 4.76 | 7.75 |
| 1994-09 | 4.73 | 7.75 |
| 1994-08 | 4.47 | 7.51 |
| 1994-07 | 4.26 | 7.25 |
| 1994-06 | 4.25 | 7.25 |
| 1994-05 | 4.01 | 6.99 |
| 1994-04 | 3.56 | 6.45 |
| 1994-03 | 3.34 | 6.06 |
| 1994-02 | 3.25 | 6 |
| 1994-01 | 3.05 | 6 |
| 1993-12 | 2.96 | 6 |
| 1993-11 | 3.02 | 6 |
| 1993-10 | 2.99 | 6 |
| 1993-09 | 3.09 | 6 |
| 1993-08 | 3.03 | 6 |
| 1993-07 | 3.06 | 6 |
| 1993-06 | 3.04 | 6 |
| 1993-05 | 3 | 6 |
| 1993-04 | 2.96 | 6 |
| 1993-03 | 3.07 | 6 |
| 1993-02 | 3.03 | 6 |
| 1993-01 | 3.02 | 6 |
| 1992-12 | 2.92 | 6 |
| 1992-11 | 3.09 | 6 |
| 1992-10 | 3.1 | 6 |
| 1992-09 | 3.22 | 6 |
| 1992-08 | 3.3 | 6 |
| 1992-07 | 3.25 | 6.02 |
| 1992-06 | 3.76 | 6.5 |
| 1992-05 | 3.82 | 6.5 |
| 1992-04 | 3.73 | 6.5 |
| 1992-03 | 3.98 | 6.5 |
| 1992-02 | 4.06 | 6.5 |
| 1992-01 | 4.03 | 6.5 |
| 1991-12 | 4.43 | 7.21 |
| 1991-11 | 4.81 | 7.58 |
| 1991-10 | 5.21 | 8 |
| 1991-09 | 5.45 | 8.2 |
| 1991-08 | 5.66 | 8.5 |
| 1991-07 | 5.82 | 8.5 |
| 1991-06 | 5.9 | 8.5 |
| 1991-05 | 5.78 | 8.5 |
| 1991-04 | 5.91 | 9 |
| 1991-03 | 6.12 | 9 |
| 1991-02 | 6.25 | 9.05 |
| 1991-01 | 6.91 | 9.52 |
| 1990-12 | 7.31 | 10 |
| 1990-11 | 7.81 | 10 |
| 1990-10 | 8.11 | 10 |
| 1990-09 | 8.2 | 10 |
| 1990-08 | 8.13 | 10 |
| 1990-07 | 8.15 | 10 |
| 1990-06 | 8.29 | 10 |
| 1990-05 | 8.18 | 10 |
| 1990-04 | 8.26 | 10 |
| 1990-03 | 8.28 | 10 |
| 1990-02 | 8.24 | 10 |
| 1990-01 | 8.23 | 10.11 |
| 1989-12 | 8.45 | 10.5 |
| 1989-11 | 8.55 | 10.5 |
| 1989-10 | 8.84 | 10.5 |
| 1989-09 | 9.02 | 10.5 |
| 1989-08 | 8.99 | 10.5 |
| 1989-07 | 9.24 | 10.98 |
| 1989-06 | 9.53 | 11.07 |
| 1989-05 | 9.81 | 11.5 |
| 1989-04 | 9.84 | 11.5 |
| 1989-03 | 9.85 | 11.5 |
| 1989-02 | 9.36 | 10.93 |
| 1989-01 | 9.12 | 10.5 |
| 1988-12 | 8.76 | 10.5 |
| 1988-11 | 8.35 | 10.05 |
| 1988-10 | 8.3 | 10 |
| 1988-09 | 8.19 | 10 |
| 1988-08 | 8.01 | 9.84 |
| 1988-07 | 7.75 | 9.29 |
| 1988-06 | 7.51 | 9 |
| 1988-05 | 7.09 | 8.84 |
| 1988-04 | 6.87 | 8.5 |
| 1988-03 | 6.58 | 8.5 |
| 1988-02 | 6.58 | 8.51 |
| 1988-01 | 6.83 | 8.75 |
| 1987-12 | 6.77 | 8.75 |
| 1987-11 | 6.69 | 8.78 |
| 1987-10 | 7.29 | 9.07 |
| 1987-09 | 7.22 | 8.7 |
| 1987-08 | 6.73 | 8.25 |
| 1987-07 | 6.58 | 8.25 |
| 1987-06 | 6.73 | 8.25 |
| 1987-05 | 6.85 | 8.14 |
| 1987-04 | 6.37 | 7.75 |
| 1987-03 | 6.13 | 7.5 |
| 1987-02 | 6.1 | 7.5 |
| 1987-01 | 6.43 | 7.5 |
| 1986-12 | 6.91 | 7.5 |
| 1986-11 | 6.04 | 7.5 |
| 1986-10 | 5.85 | 7.5 |
| 1986-09 | 5.89 | 7.5 |
| 1986-08 | 6.17 | 7.9 |
| 1986-07 | 6.56 | 8.16 |
| 1986-06 | 6.92 | 8.5 |
| 1986-05 | 6.85 | 8.5 |
| 1986-04 | 6.99 | 8.83 |
| 1986-03 | 7.48 | 9.1 |
| 1986-02 | 7.86 | 9.5 |
| 1986-01 | 8.14 | 9.5 |
| 1985-12 | 8.27 | 9.5 |
| 1985-11 | 8.05 | 9.5 |
| 1985-10 | 7.99 | 9.5 |
| 1985-09 | 7.92 | 9.5 |
| 1985-08 | 7.9 | 9.5 |
| 1985-07 | 7.88 | 9.5 |
| 1985-06 | 7.53 | 9.78 |
| 1985-05 | 7.97 | 10.31 |
| 1985-04 | 8.27 | 10.5 |
| 1985-03 | 8.58 | 10.5 |
| 1985-02 | 8.5 | 10.5 |
| 1985-01 | 8.35 | 10.61 |
| 1984-12 | 8.38 | 11.06 |
| 1984-11 | 9.43 | 11.77 |
| 1984-10 | 9.99 | 12.58 |
| 1984-09 | 11.3 | 12.97 |
| 1984-08 | 11.64 | 13 |
| 1984-07 | 11.23 | 13 |
| 1984-06 | 11.06 | 12.6 |
| 1984-05 | 10.32 | 12.39 |
| 1984-04 | 10.29 | 11.93 |
| 1984-03 | 9.91 | 11.21 |
| 1984-02 | 9.59 | 11 |
| 1984-01 | 9.56 | 11 |
| 1983-12 | 9.47 | 11 |
| 1983-11 | 9.34 | 11 |
| 1983-10 | 9.48 | 11 |
| 1983-09 | 9.45 | 11 |
| 1983-08 | 9.56 | 10.89 |
| 1983-07 | 9.37 | 10.5 |
| 1983-06 | 8.98 | 10.5 |
| 1983-05 | 8.63 | 10.5 |
| 1983-04 | 8.8 | 10.5 |
| 1983-03 | 8.77 | 10.5 |
| 1983-02 | 8.51 | 10.98 |
| 1983-01 | 8.68 | 11.16 |
| 1982-12 | 8.95 | 11.5 |
| 1982-11 | 9.2 | 11.85 |
| 1982-10 | 9.71 | 12.52 |
| 1982-09 | 10.31 | 13.5 |
| 1982-08 | 10.12 | 14.39 |
| 1982-07 | 12.59 | 16.26 |
| 1982-06 | 14.15 | 16.5 |
| 1982-05 | 14.45 | 16.5 |
| 1982-04 | 14.94 | 16.5 |
| 1982-03 | 14.68 | 16.5 |
| 1982-02 | 14.78 | 16.56 |
| 1982-01 | 13.22 | 15.75 |
| 1981-12 | 12.37 | 15.75 |
| 1981-11 | 13.31 | 16.84 |
| 1981-10 | 15.08 | 18.45 |
| 1981-09 | 15.87 | 20.08 |
| 1981-08 | 17.82 | 20.5 |
| 1981-07 | 19.04 | 20.39 |
| 1981-06 | 19.1 | 20.03 |
| 1981-05 | 18.52 | 19.61 |
| 1981-04 | 15.72 | 17.15 |
| 1981-03 | 14.7 | 18.05 |
| 1981-02 | 15.93 | 19.43 |
| 1981-01 | 19.08 | 20.16 |
| 1980-12 | 18.9 | 20.35 |
| 1980-11 | 15.85 | 16.06 |
| 1980-10 | 12.81 | 13.79 |
| 1980-09 | 10.87 | 12.23 |
| 1980-08 | 9.61 | 11.12 |
| 1980-07 | 9.03 | 11.48 |
| 1980-06 | 9.47 | 12.63 |
| 1980-05 | 10.98 | 16.57 |
| 1980-04 | 17.61 | 19.77 |
| 1980-03 | 17.19 | 18.31 |
| 1980-02 | 14.13 | 15.63 |
| 1980-01 | 13.82 | 15.25 |
| 1979-12 | 13.78 | 15.3 |
| 1979-11 | 13.18 | 15.55 |
| 1979-10 | 13.77 | 14.39 |
| 1979-09 | 11.43 | 12.9 |
| 1979-08 | 10.94 | 11.91 |
| 1979-07 | 10.47 | 11.54 |
| 1979-06 | 10.29 | 11.65 |
| 1979-05 | 10.24 | 11.75 |
| 1979-04 | 10.01 | 11.75 |
| 1979-03 | 10.09 | 11.75 |
| 1979-02 | 10.06 | 11.75 |
| 1979-01 | 10.07 | 11.75 |
| 1978-12 | 10.03 | 11.55 |
| 1978-11 | 9.76 | 10.94 |
| 1978-10 | 8.96 | 9.94 |
| 1978-09 | 8.45 | 9.41 |
| 1978-08 | 8.04 | 9.01 |
| 1978-07 | 7.81 | 9 |
| 1978-06 | 7.6 | 8.63 |
| 1978-05 | 7.36 | 8.27 |
| 1978-04 | 6.89 | 8 |
| 1978-03 | 6.79 | 8 |
| 1978-02 | 6.78 | 8 |
| 1978-01 | 6.7 | 7.93 |
| 1977-12 | 6.56 | 7.75 |
| 1977-11 | 6.51 | 7.75 |
| 1977-10 | 6.47 | 7.52 |
| 1977-09 | 6.14 | 7.13 |
| 1977-08 | 5.9 | 6.83 |
| 1977-07 | 5.42 | 6.75 |
| 1977-06 | 5.39 | 6.75 |
| 1977-05 | 5.35 | 6.41 |
| 1977-04 | 4.73 | 6.25 |
| 1977-03 | 4.69 | 6.25 |
| 1977-02 | 4.68 | 6.25 |
| 1977-01 | 4.61 | 6.25 |
| 1976-12 | 4.65 | 6.35 |
| 1976-11 | 4.95 | 6.5 |
| 1976-10 | 5.02 | 6.77 |
| 1976-09 | 5.25 | 7 |
| 1976-08 | 5.29 | 7.01 |
| 1976-07 | 5.31 | 7.25 |
| 1976-06 | 5.48 | 7.2 |
| 1976-05 | 5.29 | 6.75 |
| 1976-04 | 4.82 | 6.75 |
| 1976-03 | 4.84 | 6.75 |
| 1976-02 | 4.77 | 6.75 |
| 1976-01 | 4.87 | 7 |
| 1975-12 | 5.2 | 7.26 |
| 1975-11 | 5.22 | 7.53 |
| 1975-10 | 5.82 | 7.96 |
| 1975-09 | 6.24 | 7.88 |
| 1975-08 | 6.14 | 7.66 |
| 1975-07 | 6.1 | 7.15 |
| 1975-06 | 5.55 | 7.07 |
| 1975-05 | 5.22 | 7.4 |
| 1975-04 | 5.49 | 7.5 |
| 1975-03 | 5.54 | 7.93 |
| 1975-02 | 6.24 | 8.96 |
| 1975-01 | 7.13 | 10.05 |
| 1974-12 | 8.53 | 10.5 |
| 1974-11 | 9.45 | 10.83 |
| 1974-10 | 10.06 | 11.68 |
| 1974-09 | 11.34 | 12 |
| 1974-08 | 12.01 | 12 |
| 1974-07 | 12.92 | 11.97 |
| 1974-06 | 11.93 | 11.54 |
| 1974-05 | 11.31 | 11.25 |
| 1974-04 | 10.51 | 10.02 |
| 1974-03 | 9.35 | 8.85 |
| 1974-02 | 8.97 | 9.21 |
| 1974-01 | 9.65 | 9.73 |
| 1973-12 | 9.95 | 9.75 |
| 1973-11 | 10.03 | 9.75 |
| 1973-10 | 10.01 | 9.94 |
| 1973-09 | 10.78 | 9.86 |
| 1973-08 | 10.5 | 9.23 |
| 1973-07 | 10.4 | 8.3 |
| 1973-06 | 8.49 | 7.49 |
| 1973-05 | 7.84 | 7.01 |
| 1973-04 | 7.12 | 6.61 |
| 1973-03 | 7.09 | 6.3 |
| 1973-02 | 6.58 | 6.02 |
| 1973-01 | 5.94 | 6 |
| 1972-12 | 5.33 | 5.79 |
| 1972-11 | 5.06 | 5.75 |
| 1972-10 | 5.05 | 5.73 |
| 1972-09 | 4.87 | 5.5 |
| 1972-08 | 4.81 | 5.27 |
| 1972-07 | 4.55 | 5.25 |
| 1972-06 | 4.46 | 5.04 |
| 1972-05 | 4.27 | 5 |
| 1972-04 | 4.17 | 4.97 |
| 1972-03 | 3.83 | 4.75 |
| 1972-02 | 3.3 | 4.75 |
| 1972-01 | 3.51 | 5.18 |
| 1971-12 | 4.14 | 5.49 |
| 1971-11 | 4.91 | 5.53 |
| 1971-10 | 5.2 | 5.9 |
| 1971-09 | 5.55 | 6 |
| 1971-08 | 5.57 | 6 |
| 1971-07 | 5.31 | 5.91 |
| 1971-06 | 4.91 | 5.5 |
| 1971-05 | 4.63 | 5.46 |
| 1971-04 | 4.16 | 5.28 |
| 1971-03 | 3.71 | 5.44 |
| 1971-02 | 3.72 | 5.88 |
| 1971-01 | 4.14 | 6.29 |
| 1970-12 | 4.9 | 6.92 |
| 1970-11 | 5.6 | 7.28 |
| 1970-10 | 6.2 | 7.5 |
| 1970-09 | 6.29 | 7.83 |
| 1970-08 | 6.62 | 8 |
| 1970-07 | 7.21 | 8 |
| 1970-06 | 7.61 | 8 |
| 1970-05 | 7.95 | 8 |
| 1970-04 | 8.1 | 8 |
| 1970-03 | 7.76 | 8.39 |
| 1970-02 | 8.98 | 8.5 |
| 1970-01 | 8.98 | 8.5 |
| 1969-12 | 8.97 | 8.5 |
| 1969-11 | 8.85 | 8.5 |
| 1969-10 | 9 | 8.5 |
| 1969-09 | 9.15 | 8.5 |
| 1969-08 | 9.19 | 8.5 |
| 1969-07 | 8.61 | 8.5 |
| 1969-06 | 8.9 | 8.23 |
| 1969-05 | 8.67 | 7.5 |
| 1969-04 | 7.41 | 7.5 |
| 1969-03 | 6.79 | 7.24 |
| 1969-02 | 6.61 | 7 |
| 1969-01 | 6.3 | 6.95 |
| 1968-12 | 6.02 | 6.6 |
| 1968-11 | 5.82 | 6.25 |
| 1968-10 | 5.91 | 6.25 |
| 1968-09 | 5.78 | 6.45 |
| 1968-08 | 6.03 | 6.5 |
| 1968-07 | 6.03 | 6.5 |
| 1968-06 | 6.07 | 6.5 |
| 1968-05 | 6.12 | 6.5 |
| 1968-04 | 5.76 | 6.2 |
| 1968-03 | 5.05 | 6 |
| 1968-02 | 4.71 | 6 |
| 1968-01 | 4.61 | 6 |
| 1967-12 | 4.51 | 6 |
| 1967-11 | 4.13 | 5.68 |
| 1967-10 | 3.88 | 5.5 |
| 1967-09 | 3.99 | 5.5 |
| 1967-08 | 3.9 | 5.5 |
| 1967-07 | 3.79 | 5.5 |
| 1967-06 | 3.98 | 5.5 |
| 1967-05 | 3.94 | 5.5 |
| 1967-04 | 4.05 | 5.5 |
| 1967-03 | 4.53 | 5.71 |
| 1967-02 | 5 | 5.75 |
| 1967-01 | 4.94 | 5.96 |
| 1966-12 | 5.4 | 6 |
| 1966-11 | 5.76 | 6 |
| 1966-10 | 5.53 | 6 |
| 1966-09 | 5.4 | 6 |
| 1966-08 | 5.53 | 5.88 |
| 1966-07 | 5.3 | 5.75 |
| 1966-06 | 5.17 | 5.52 |
| 1966-05 | 4.9 | 5.5 |
| 1966-04 | 4.67 | 5.5 |
| 1966-03 | 4.66 | 5.35 |
| 1966-02 | 4.6 | 5 |
| 1966-01 | 4.42 | 5 |
| 1965-12 | 4.32 | 4.92 |
| 1965-11 | 4.1 | 4.5 |
| 1965-10 | 4.08 | 4.5 |
| 1965-09 | 4.02 | 4.5 |
| 1965-08 | 4.12 | 4.5 |
| 1965-07 | 4.09 | 4.5 |
| 1965-06 | 4.05 | 4.5 |
| 1965-05 | 4.1 | 4.5 |
| 1965-04 | 4.09 | 4.5 |
| 1965-03 | 4.05 | 4.5 |
| 1965-02 | 3.98 | 4.5 |
| 1965-01 | 3.9 | 4.5 |
| 1964-12 | 3.85 | 4.5 |
| 1964-11 | 3.52 | 4.5 |
| 1964-10 | 3.36 | 4.5 |
| 1964-09 | 3.45 | 4.5 |
| 1964-08 | 3.5 | 4.5 |
| 1964-07 | 3.42 | 4.5 |
| 1964-06 | 3.5 | 4.5 |
| 1964-05 | 3.5 | 4.5 |
| 1964-04 | 3.47 | 4.5 |
| 1964-03 | 3.43 | 4.5 |
| 1964-02 | 3.48 | 4.5 |
| 1964-01 | 3.48 | 4.5 |
| 1963-12 | 3.38 | 4.5 |
| 1963-11 | 3.48 | 4.5 |
| 1963-10 | 3.5 | 4.5 |
| 1963-09 | 3.48 | 4.5 |
| 1963-08 | 3.49 | 4.5 |
| 1963-07 | 3.02 | 4.5 |
| 1963-06 | 2.99 | 4.5 |
| 1963-05 | 3 | 4.5 |
| 1963-04 | 2.9 | 4.5 |
| 1963-03 | 2.98 | 4.5 |
| 1963-02 | 3 | 4.5 |
| 1963-01 | 2.92 | 4.5 |
| 1962-12 | 2.93 | 4.5 |
| 1962-11 | 2.94 | 4.5 |
| 1962-10 | 2.9 | 4.5 |
| 1962-09 | 2.9 | 4.5 |
| 1962-08 | 2.93 | 4.5 |
| 1962-07 | 2.71 | 4.5 |
| 1962-06 | 2.68 | 4.5 |
| 1962-05 | 2.36 | 4.5 |
| 1962-04 | 2.78 | 4.5 |
| 1962-03 | 2.85 | 4.5 |
| 1962-02 | 2.37 | 4.5 |
| 1962-01 | 2.15 | 4.5 |
| 1961-12 | 2.33 | 4.5 |
| 1961-11 | 2.61 | 4.5 |
| 1961-10 | 2.26 | 4.5 |
| 1961-09 | 1.88 | 4.5 |
| 1961-08 | 2 | 4.5 |
| 1961-07 | 1.17 | 4.5 |
| 1961-06 | 1.73 | 4.5 |
| 1961-05 | 1.98 | 4.5 |
| 1961-04 | 1.49 | 4.5 |
| 1961-03 | 2.02 | 4.5 |
| 1961-02 | 2.54 | 4.5 |
| 1961-01 | 1.45 | 4.5 |
| 1960-12 | 1.98 | 4.5 |
| 1960-11 | 2.44 | 4.5 |
| 1960-10 | 2.47 | 4.5 |
| 1960-09 | 2.6 | 4.5 |
| 1960-08 | 2.98 | 4.85 |
| 1960-07 | 3.23 | 5 |
| 1960-06 | 3.32 | 5 |
| 1960-05 | 3.85 | 5 |
| 1960-04 | 3.92 | 5 |
| 1960-03 | 3.84 | 5 |
| 1960-02 | 3.97 | 5 |
| 1960-01 | 3.99 | 5 |
| 1959-12 | 3.99 | 5 |
| 1959-11 | 4 | 5 |
| 1959-10 | 3.98 | 5 |
| 1959-09 | 3.76 | 5 |
| 1959-08 | 3.5 | 4.5 |
| 1959-07 | 3.47 | 4.5 |
| 1959-06 | 3.39 | 4.5 |
| 1959-05 | 2.9 | 4.23 |
| 1959-04 | 2.96 | 4 |
| 1959-03 | 2.8 | 4 |
| 1959-02 | 2.43 | 4 |
| 1959-01 | 2.48 | 4 |
| 1958-12 | 2.42 | 4 |
| 1958-11 | 2.27 | 4 |
| 1958-10 | 1.8 | 4 |
| 1958-09 | 1.76 | 3.83 |
| 1958-08 | 1.53 | 3.5 |
| 1958-07 | 0.68 | 3.5 |
| 1958-06 | 0.93 | 3.5 |
| 1958-05 | 0.63 | 3.5 |
| 1958-04 | 1.26 | 3.83 |
| 1958-03 | 1.2 | 4 |
| 1958-02 | 1.67 | 4 |
| 1958-01 | 2.72 | 4.34 |
| 1957-12 | 2.98 | 4.5 |
| 1957-11 | 3.28 | 4.5 |
| 1957-10 | 3.5 | 4.5 |
| 1957-09 | 3.47 | 4.5 |
| 1957-08 | 3.24 | 4.42 |
| 1957-07 | 2.99 | 4 |
| 1957-06 | 3 | 4 |
| 1957-05 | 3 | 4 |
| 1957-04 | 3 | 4 |
| 1957-03 | 2.96 | 4 |
| 1957-02 | 3 | 4 |
| 1957-01 | 2.84 | 4 |
| 1956-12 | 2.94 | 4 |
| 1956-11 | 2.88 | 4 |
| 1956-10 | 2.96 | 4 |
| 1956-09 | 2.95 | 4 |
| 1956-08 | 2.73 | 3.84 |
| 1956-07 | 2.75 | 3.75 |
| 1956-06 | 2.71 | 3.75 |
| 1956-05 | 2.75 | 3.75 |
| 1956-04 | 2.62 | 3.65 |
| 1956-03 | 2.5 | 3.5 |
| 1956-02 | 2.5 | 3.5 |
| 1956-01 | 2.45 | 3.5 |
| 1955-12 | 2.48 | 3.5 |
| 1955-11 | 2.35 | 3.5 |
| 1955-10 | 2.24 | 3.4 |
| 1955-09 | 2.18 | 3.25 |
| 1955-08 | 1.96 | 3.23 |
| 1955-07 | 1.68 | 3 |
| 1955-06 | 1.64 | 3 |
| 1955-05 | 1.43 | 3 |
| 1955-04 | 1.43 | 3 |
| 1955-03 | 1.35 | 3 |
| 1955-02 | 1.29 | 3 |
| 1955-01 | 1.39 | 3 |
| 1954-12 | 1.28 | 3 |
| 1954-11 | 0.83 | 3 |
| 1954-10 | 0.85 | 3 |
| 1954-09 | 1.07 | 3 |
| 1954-08 | 1.22 | 3 |
| 1954-07 | 0.8 | 3 |