1981 12 10.28 -4.58 1982 01 9.23 -5.63 1982 02 8.72 -6.13 1982 03 8.65 -6.21 1982 04 9.09 -5.76 1982 05 10.50 -4.36 1982 06 12.57 -2.29 1982 07 14.98 0.13 1982 08 16.52 1.67 1982 09 16.18 1.33 1982 10 14.11 -0.75 1982 11 12.01 -2.85 1982 12 10.40 -4.46 1983 01 9.26 -5.60 1983 02 8.64 -6.22 1983 03 8.61 -6.24 1983 04 9.23 -5.63 1983 05 10.49 -4.36 1983 06 12.55 -2.31 1983 07 14.89 0.03 1983 08 16.77 1.91 1983 09 16.51 1.65 1983 10 14.22 -0.63 1983 11 12.07 -2.79 1983 12 10.40 -4.46 1984 01 9.32 -5.54 1984 02 8.74 -6.12 1984 03 8.63 -6.23 1984 04 9.13 -5.73 1984 05 10.56 -4.29 1984 06 12.94 -1.92 1984 07 15.55 0.69 1984 08 16.99 2.13 1984 09 16.50 1.64 1984 10 14.20 -0.66 1984 11 12.00 -2.85 1984 12 10.35 -4.51 1985 01 9.15 -5.70 1985 02 8.60 -6.26 1985 03 8.56 -6.29 1985 04 9.07 -5.78 1985 05 10.31 -4.55 1985 06 12.44 -2.41 1985 07 15.14 0.28 1985 08 16.70 1.84 1985 09 16.38 1.52 1985 10 14.18 -0.67 1985 11 11.99 -2.87 1985 12 10.32 -4.54 1986 01 9.19 -5.67 1986 02 8.59 -6.27 1986 03 8.55 -6.31 1986 04 9.14 -5.72 1986 05 10.42 -4.43 1986 06 12.60 -2.26 1986 07 15.12 0.26 1986 08 16.85 1.99 1986 09 16.58 1.72 1986 10 14.31 -0.55 1986 11 12.08 -2.78 1986 12 10.42 -4.44 1987 01 9.20 -5.65 1987 02 8.59 -6.27 1987 03 8.56 -6.30 1987 04 9.08 -5.78 1987 05 10.35 -4.51 1987 06 12.33 -2.53 1987 07 14.85 -0.01 1987 08 16.63 1.77 1987 09 16.15 1.29 1987 10 14.15 -0.71 1987 11 12.07 -2.79 1987 12 10.33 -4.53 1988 01 9.32 -5.54 1988 02 8.74 -6.12 1988 03 8.72 -6.14 1988 04 9.28 -5.58 1988 05 10.53 -4.33 1988 06 12.80 -2.05 1988 07 15.44 0.59 1988 08 16.93 2.08 1988 09 16.44 1.58 1988 10 14.56 -0.30 1988 11 12.16 -2.70 1988 12 10.44 -4.42 1989 01 9.39 -5.47 1989 02 8.77 -6.09 1989 03 8.75 -6.11 1989 04 9.52 -5.34 1989 05 10.76 -4.10 1989 06 12.96 -1.90 1989 07 15.64 0.78 1989 08 17.29 2.43 1989 09 16.88 2.03 1989 10 14.56 -0.30 1989 11 12.20 -2.65 1989 12 10.56 -4.30 1990 01 9.41 -5.45 1990 02 8.73 -6.13 1990 03 8.79 -6.07 1990 04 9.42 -5.44 1990 05 10.82 -4.04 1990 06 13.20 -1.66 1990 07 15.92 1.06 1990 08 17.43 2.57 1990 09 16.89 2.03 1990 10 14.71 -0.15 1990 11 12.52 -2.33 1990 12 10.78 -4.08 1991 01 9.63 -5.23 1991 02 8.96 -5.89 1991 03 8.91 -5.95 1991 04 9.54 -5.32 1991 05 10.81 -4.05 1991 06 13.21 -1.65 1991 07 15.78 0.92 1991 08 17.18 2.32 1991 09 16.62 1.76 1991 10 14.61 -0.25 1991 11 12.39 -2.47 1991 12 10.54 -4.32 1992 01 9.40 -5.46 1992 02 8.84 -6.01 1992 03 8.88 -5.98 1992 04 9.43 -5.43 1992 05 10.61 -4.25 1992 06 12.82 -2.04 1992 07 15.35 0.49 1992 08 16.75 1.90 1992 09 16.37 1.51 1992 10 14.12 -0.74 1992 11 12.02 -2.84 1992 12 10.36 -4.50 1993 01 9.36 -5.50 1993 02 8.78 -6.08 1993 03 8.76 -6.10 1993 04 9.30 -5.56 1993 05 10.66 -4.20 1993 06 12.99 -1.87 1993 07 15.55 0.69 1993 08 16.85 1.99 1993 09 16.44 1.59 1993 10 14.39 -0.47 1993 11 12.25 -2.61 1993 12 10.47 -4.39 1994 01 9.33 -5.53 1994 02 8.89 -5.97 1994 03 8.79 -6.07 1994 04 9.28 -5.58 1994 05 10.54 -4.32 1994 06 12.82 -2.04 1994 07 15.55 0.69 1994 08 17.54 2.69 1994 09 16.94 2.08 1994 10 14.66 -0.20 1994 11 12.25 -2.61 1994 12 10.65 -4.21 1995 01 9.34 -5.52 1995 02 8.72 -6.14 1995 03 8.72 -6.14 1995 04 9.17 -5.69 1995 05 10.51 -4.35 1995 06 12.79 -2.07 1995 07 15.64 0.78 1995 08 17.33 2.47 1995 09 16.87 2.02 1995 10 14.73 -0.12 1995 11 12.33 -2.53 1995 12 10.71 -4.15 1996 01 9.49 -5.36 1996 02 8.85 -6.01 1996 03 8.81 -6.05 1996 04 9.31 -5.55 1996 05 10.73 -4.12 1996 06 13.09 -1.77 1996 07 15.58 0.72 1996 08 17.18 2.32 1996 09 16.65 1.79 1996 10 14.51 -0.35 1996 11 12.20 -2.66 1996 12 10.54 -4.32 1997 01 9.37 -5.49 1997 02 8.90 -5.96 1997 03 8.86 -6.00 1997 04 9.44 -5.42 1997 05 10.91 -3.95 1997 06 13.36 -1.50 1997 07 16.11 1.25 1997 08 17.55 2.69 1997 09 16.96 2.10 1997 10 14.63 -0.23 1997 11 12.47 -2.39 1997 12 10.63 -4.22 1998 01 9.44 -5.41 1998 02 8.85 -6.01 1998 03 8.84 -6.02 1998 04 9.56 -5.30 1998 05 10.90 -3.96 1998 06 13.26 -1.59 1998 07 16.04 1.18 1998 08 17.23 2.37 1998 09 16.56 1.71 1998 10 14.59 -0.27 1998 11 12.53 -2.32 1998 12 10.65 -4.20 1999 01 9.53 -5.33 1999 02 8.90 -5.96 1999 03 8.80 -6.06 1999 04 9.24 -5.61 1999 05 10.48 -4.37 1999 06 12.84 -2.02 1999 07 15.46 0.61 1999 08 16.95 2.10 1999 09 16.57 1.71 1999 10 14.58 -0.28 1999 11 12.32 -2.54 1999 12 10.55 -4.31 2000 01 9.49 -5.37 2000 02 8.84 -6.02 2000 03 8.71 -6.15 2000 04 9.27 -5.59 2000 05 10.72 -4.13 2000 06 13.10 -1.75 2000 07 15.89 1.03 2000 08 17.45 2.59 2000 09 16.80 1.94 2000 10 14.69 -0.17 2000 11 12.25 -2.61 2000 12 10.53 -4.33 2001 01 9.35 -5.51 2001 02 8.82 -6.04 2001 03 8.74 -6.12 2001 04 9.29 -5.57 2001 05 10.64 -4.22 2001 06 12.99 -1.87 2001 07 15.85 0.99 2001 08 17.21 2.35 2001 09 16.53 1.67 2001 10 14.39 -0.47 2001 11 12.20 -2.66 2001 12 10.45 -4.41 2002 01 9.25 -5.61 2002 02 8.76 -6.10 2002 03 8.73 -6.13 2002 04 9.33 -5.52 2002 05 10.85 -4.01 2002 06 13.17 -1.69 2002 07 15.61 0.76 2002 08 17.01 2.15 2002 09 16.54 1.68 2002 10 14.61 -0.25 2002 11 12.23 -2.63 2002 12 10.57 -4.29 2003 01 9.27 -5.59 2003 02 8.74 -6.12 2003 03 8.68 -6.18 2003 04 9.31 -5.54 2003 05 10.80 -4.05 2003 06 13.14 -1.72 2003 07 15.87 1.02 2003 08 17.34 2.48 2003 09 16.94 2.08 2003 10 14.89 0.03 2003 11 12.53 -2.32 2003 12 10.64 -4.22 2004 01 9.52 -5.33 2004 02 8.91 -5.95 2004 03 8.83 -6.03 2004 04 9.48 -5.38 2004 05 10.95 -3.91 2004 06 13.31 -1.55 2004 07 16.16 1.30 2004 08 17.59 2.74 2004 09 17.06 2.21 2004 10 14.88 0.02 2004 11 12.51 -2.35 2004 12 10.79 -4.07 2005 01 9.59 -5.27 2005 02 9.00 -5.86 2005 03 8.92 -5.94 2005 04 9.47 -5.39 2005 05 10.96 -3.89 2005 06 13.49 -1.36 2005 07 16.05 1.20 2005 08 17.64 2.78 2005 09 17.05 2.19 2005 10 15.01 0.15 2005 11 12.62 -2.24 2005 12 10.63 -4.23 2006 01 9.39 -5.47 2006 02 8.82 -6.04 2006 03 8.77 -6.09 2006 04 9.22 -5.64 2006 05 10.48 -4.38 2006 06 12.88 -1.98 2006 07 15.61 0.75 2006 08 17.33 2.47 2006 09 16.80 1.94 2006 10 14.63 -0.23 2006 11 12.30 -2.56 2006 12 10.49 -4.36 2007 01 9.26 -5.60 2007 02 8.78 -6.08 2007 03 8.66 -6.19 2007 04 9.18 -5.68 2007 05 10.60 -4.26 2007 06 13.18 -1.68 2007 07 15.92 1.06 2007 08 17.50 2.64 2007 09 16.99 2.13 2007 10 14.73 -0.13 2007 11 12.33 -2.53 2007 12 10.58 -4.28 2008 01 9.40 -5.46 2008 02 8.73 -6.13 2008 03 8.68 -6.18 2008 04 9.38 -5.47 2008 05 10.67 -4.18 2008 06 13.13 -1.73 2008 07 15.89 1.04 2008 08 17.46 2.60 2008 09 16.97 2.11 2008 10 14.82 -0.03 2008 11 12.44 -2.42 2008 12 10.57 -4.29 2009 01 9.39 -5.47 2009 02 8.89 -5.97 2009 03 8.81 -6.05 2009 04 9.40 -5.46 2009 05 10.81 -4.05 2009 06 13.23 -1.63 2009 07 15.80 0.94 2009 08 17.27 2.41 2009 09 16.55 1.69 2009 10 14.61 -0.25 2009 11 12.26 -2.60 2009 12 10.42 -4.43 2010 01 9.25 -5.60 2010 02 8.72 -6.14 2010 03 8.66 -6.20 2010 04 9.06 -5.80 2010 05 10.41 -4.44 2010 06 12.99 -1.87 2010 07 15.87 1.01 2010 08 17.35 2.49 2010 09 17.08 2.22 2010 10 14.67 -0.19 2010 11 12.28 -2.57 2010 12 10.64 -4.22 2011 01 9.37 -5.49 2011 02 8.78 -6.08 2011 03 8.70 -6.16 2011 04 9.19 -5.67 2011 05 10.66 -4.20 2011 06 13.18 -1.68 2011 07 15.93 1.08 2011 08 17.33 2.47 2011 09 16.78 1.92 2011 10 14.68 -0.18 2011 11 12.48 -2.38 2011 12 10.65 -4.20 2012 01 9.37 -5.49 2012 02 8.76 -6.10 2012 03 8.65 -6.21 2012 04 9.08 -5.78 2012 05 10.67 -4.19 2012 06 12.95 -1.91 2012 07 15.71 0.85 2012 08 17.09 2.24 2012 09 16.60 1.74 2012 10 14.57 -0.28 2012 11 12.35 -2.51 2012 12 10.54 -4.32 2013 01 9.24 -5.62 2013 02 8.72 -6.13 2013 03 8.71 -6.15 2013 04 9.26 -5.59 2013 05 10.68 -4.18 2013 06 13.31 -1.55 2013 07 16.31 1.45 2013 08 17.90 3.05 2013 09 17.07 2.21 2013 10 14.68 -0.18 2013 11 12.54 -2.32 2013 12 10.84 -4.02 2014 01 9.68 -5.17 2014 02 9.01 -5.85 2014 03 8.90 -5.96 2014 04 9.55 -5.31 2014 05 10.98 -3.88 2014 06 13.60 -1.26 2014 07 16.41 1.55 2014 08 18.00 3.14 2014 09 17.66 2.81 2014 10 15.14 0.28 2014 11 12.69 -2.17 2014 12 10.83 -4.03 2015 01 9.62 -5.24 2015 02 9.03 -5.83 2015 03 9.04 -5.82 2015 04 9.67 -5.19 2015 05 11.18 -3.68 2015 06 13.72 -1.14 2015 07 16.34 1.48 2015 08 17.89 3.03 2015 09 17.19 2.33 2015 10 15.16 0.30 2015 11 12.83 -2.02 2015 12 10.94 -3.92 2016 01 9.72 -5.14 2016 02 9.13 -5.73 2016 03 8.94 -5.92 2016 04 9.57 -5.28 2016 05 11.11 -3.75 2016 06 13.76 -1.10 2016 07 16.40 1.54 2016 08 17.88 3.03 2016 09 17.40 2.54 2016 10 15.24 0.39 2016 11 12.61 -2.25 2016 12 10.78 -4.07 2017 01 9.71 -5.15 2017 02 9.07 -5.79 2017 03 9.02 -5.84 2017 04 9.71 -5.14 2017 05 11.13 -3.73 2017 06 13.61 -1.24 2017 07 16.44 1.59 2017 08 17.85 2.99 2017 09 17.23 2.37 2017 10 15.04 0.18 2017 11 12.71 -2.15 2017 12 10.84 -4.02 2018 01 9.79 -5.07 2018 02 9.21 -5.65 2018 03 9.15 -5.71 2018 04 9.70 -5.16 2018 05 11.23 -3.62 2018 06 13.64 -1.21 2018 07 16.16 1.30 2018 08 17.62 2.76 2018 09 17.24 2.38 2018 10 15.45 0.60 2018 11 13.17 -1.68 2018 12 11.10 -3.76 2019 01 9.75 -5.11 2019 02 9.17 -5.68 2019 03 9.24 -5.62 2019 04 9.85 -5.00 2019 05 11.36 -3.50