1981 06 31.30  25.80  28.55 
1981 07 30.80  25.20  28.00 
1981 08 31.70  26.10  28.90 
1981 09 30.30  24.60  27.45 
1981 10 31.00  24.60  27.80 
1981 11 29.70  23.90  26.80 
1981 12 30.10  23.40  26.75 
1982 01 32.40  23.50  27.95 
1982 02 33.30  23.80  28.55 
1982 03 34.09  24.60  29.34 
1982 04 33.40  25.40  29.40 
1982 05 32.00  25.20  28.60 
1982 06 31.30  26.20  28.75 
1982 07 30.30  24.80  27.55 
1982 08 31.00  25.10  28.05 
1982 09 30.50  25.60  28.05 
1982 10 30.80  24.00  27.40 
1982 11 31.40  24.40  27.90 
1982 12 31.00  23.50  27.25 
1983 01 32.59  24.20  28.40 
1983 02 33.70  23.90  28.80 
1983 03 34.50  25.00  29.75 
1983 04 34.70  24.40  29.55 
1983 05 32.59  25.50  29.05 
1983 06 31.70  25.20  28.45 
1983 07 30.70  24.70  27.70 
1983 08 30.50  24.70  27.60 
1983 09 30.50  24.20  27.35 
1983 10 30.40  24.70  27.55 
1983 11 30.60  23.90  27.25 
1983 12 30.70  23.70  27.20 
1984 01 31.90  23.70  27.80 
1984 02 32.80  24.20  28.50 
1984 03 33.30  24.40  28.84 
1984 04 32.40  24.90  28.65 
1984 05 31.50  25.10  28.30 
1984 06 30.40  25.20  27.80 
1984 07 30.30  24.10  27.20 
1984 08 30.80  26.70  28.75 
1984 09 30.40  24.50  27.45 
1984 10 30.30  24.00  27.15 
1984 11 31.60  24.20  27.90 
1984 12 30.30  23.60  26.95 
1985 01 32.20  23.90  28.05 
1985 02 33.00  24.60  28.80 
1985 03 33.80  24.60  29.20 
1985 04 33.50  25.60  29.55 
1985 05 31.30  24.80  28.05 
1985 06 30.80  26.20  28.50 
1985 07 30.60  25.20  27.90 
1985 08 30.60  25.00  27.80 
1985 09 30.10  24.30  27.20 
1985 10 30.10  24.40  27.25 
1985 11 30.70  24.00  27.35 
1985 12 31.00  23.60  27.30 
1986 01 31.40  23.60  27.50 
1986 02 33.20  23.40  28.30 
1986 03 33.70  24.80  29.25 
1986 04 34.40  25.20  29.80 
1986 05 31.60  25.20  28.40 
1986 06 31.50  25.50  28.50 
1986 07 31.40  25.40  28.40 
1986 08 30.40  26.00  28.20 
1986 09 29.20  24.50  26.85 
1986 10 30.20  24.70  27.45 
1986 11 30.30  24.10  27.20 
1986 12 31.90  24.30  28.09 
1987 01 32.50  24.10  28.30 
1987 02 33.90  23.40  28.65 
1987 03 34.20  25.20  29.70 
1987 04 34.40  25.60  30.00 
1987 05 32.00  24.90  28.45 
1987 06 32.00  25.70  28.85 
1987 07 32.20  25.90  29.05 
1987 08 30.70  24.70  27.70 
1987 09 31.10  25.50  28.30 
1987 10 31.70  24.50  28.10 
1987 11 30.90  24.40  27.65 
1987 12 30.80  23.60  27.20 
1988 01 33.20  24.40  28.80 
1988 02 34.20  25.00  29.60 
1988 03 35.20  25.30  30.25 
1988 04 34.50  25.30  29.90 
1988 05 32.00  25.40  28.70 
1988 06 32.00  25.70  28.85 
1988 07 31.20  24.50  27.85 
1988 08 31.00  24.60  27.80 
1988 09 30.40  24.30  27.34 
1988 10 30.20  24.90  27.55 
1988 11 30.40  24.00  27.20 
1988 12 31.00  23.50  27.25 
1989 01 33.20  24.30  28.75 
1989 02 33.80  23.00  28.40 
1989 03 33.50  24.10  28.80 
1989 04 32.40  24.70  28.55 
1989 05 31.90  25.00  28.45 
1989 06 31.80  25.30  28.55 
1989 07 31.50  24.80  28.15 
1989 08 30.80  25.50  28.15 
1989 09 30.90  24.50  27.70 
1989 10 30.50  24.40  27.45 
1989 11 31.70  23.10  27.40 
1989 12 32.59  22.20  27.40 
1990 01 33.30  22.20  27.75 
1990 02 34.70 -99.99 -99.99 
1990 03 35.20 -99.99 -99.99 
1990 04 33.90 -99.99 -99.99 
1990 05 32.09 -99.99 -99.99 
1990 06 32.00 -99.99 -99.99 
1990 07 31.30 -99.99 -99.99 
1990 08 31.80 -99.99 -99.99 
1990 09 30.40 -99.99 -99.99 
1990 10 31.40  24.10  27.75 
1990 11 30.60  24.20  27.40 
1990 12 31.50  23.90  27.70 
1991 01 33.30  23.40  28.34 
1991 02 34.30  23.80  29.05 
1991 03 35.00  24.10  29.55 
1991 04 34.70  24.90  29.80 
1991 05 32.80  24.90  28.84 
1991 06 33.09  25.70  29.40 
1991 07 31.10  24.80  27.95 
1991 08 31.60  24.90  28.25 
1991 09 30.80  25.20  28.00 
1991 10 31.30  23.70  27.50 
1991 11 31.30  23.80  27.55 
1991 12 31.70  24.00  27.85 
1992 01 32.80  24.10  28.45 
1992 02 33.80  23.70  28.75 
1992 03 35.00  24.00  29.50 
1992 04 35.30  24.80  30.05 
1992 05 33.90  24.60  29.25 
1992 06 32.59  24.70  28.65 
1992 07 32.40  24.10  28.25 
1992 08 31.10  24.40  27.75 
1992 09 31.20  23.70  27.45 
1992 10 30.30  22.90  26.59 
1992 11 31.00  22.30  26.65 
1992 12 32.00  22.20  27.10 
1993 01 33.59  22.70  28.15 
1993 02 34.30  22.40  28.34 
1993 03 34.40  22.60  28.50 
1993 04 34.20  23.90  29.05 
1993 05 33.09  23.90  28.50 
1993 06 32.09  25.10  28.59 
1993 07 31.70  24.70  28.20 
1993 08 31.90  24.60  28.25 
1993 09 30.80  23.40  27.09 
1993 10 31.10  23.10  27.10 
1993 11 31.60  23.20  27.40 
1993 12 30.60  22.40  26.50 
1994 01 33.50  23.30  28.40 
1994 02 34.00  24.10  29.05 
1994 03 34.30  24.90  29.59 
1994 04 34.30  24.60  29.45 
1994 05 32.59  26.00  29.30 
1994 06 32.30  25.30  28.80 
1994 07 32.30  25.10  28.70 
1994 08 31.60  24.60  28.10 
1994 09 30.40  24.40  27.40 
1994 10 32.00  23.70  27.85 
1994 11 31.40  24.10  27.75 
1994 12 32.59  23.40  28.00 
1995 01 33.59  24.10  28.84 
1995 02 34.40  24.10  29.25 
1995 03 35.09  24.70  29.90 
1995 04 35.40  24.90  30.15 
1995 05 34.20  25.20  29.70 
1995 06 32.80  25.50  29.15 
1995 07 31.90  24.20  28.05 
1995 08 31.00  24.50  27.75 
1995 09 31.00  25.30  28.15 
1995 10 31.20  24.30  27.75 
1995 11 30.60  24.00  27.30 
1995 12 31.70  22.80  27.25 
1996 01 32.90  23.20  28.05 
1996 02 33.90  24.20  29.05 
1996 03 35.50  24.80  30.15 
1996 04 34.59  25.10  29.84 
1996 05 33.40  25.90  29.65 
1996 06 33.20  25.20  29.20 
1996 07 32.59  25.60  29.09 
1996 08 31.40  25.20  28.30 
1996 09 31.00  25.60  28.30 
1996 10 31.20  24.10  27.65 
1996 11 30.90  24.50  27.70 
1996 12 30.30  22.90  26.59 
2003 06 31.14  25.61  28.37 
2003 09 30.05  25.96  28.00 
2003 10 29.41  25.45  27.43 
2003 11 30.54  25.05  27.79 
2004 02 32.39  25.35  28.87 
2004 04 33.38  26.07  29.72 
2004 05 31.73  26.99  29.36 
2004 06 30.45  26.30  28.37 
2005 11 30.07  24.35  27.21 
2005 12 28.83  24.17  26.50 
2006 02 32.43  25.62  29.02 
2006 04 32.00  25.32  28.66 
2006 05 30.76  25.50  28.13 
2006 06 30.70  25.51  28.10 
2006 07 30.37  26.23  28.30 
2006 08 30.42  25.89  28.15 
2006 09 30.26  25.43  27.84 
2006 10 30.75  25.04  27.89 
2006 11 31.60  25.13  28.36 
2006 12 31.15  24.61  27.88 
2007 01 30.71  24.72  27.71 
2007 02 32.24  24.78  28.51 
2007 03 31.95  25.26  28.60 
2007 04 32.07  25.58  28.82 
2007 05 30.95  25.95  28.45 
2007 06 30.53  25.91  28.22 
2007 07 30.32  25.91  28.11 
2007 08 29.88  26.62  28.25 
2007 09 29.89  25.72  27.80 
2007 10 29.17  24.95  27.06 
2007 11 29.80  24.46  27.13 
2007 12 30.48  24.37  27.42 
2008 01 31.30  25.11  28.20 
2008 02 31.71  24.41  28.06 
2008 03 31.78  25.29  28.53 
2008 04 31.30  25.52  28.41 
2008 05 29.99  26.87  28.43 
2008 06 29.86  25.45  27.65 
2008 07 29.74  25.14  27.43 
2008 08 30.18  25.38  27.78 
2008 09 29.70  26.11  27.90 
2008 10 29.95  24.84  27.39 
2008 11 29.17  24.80  26.98 
2008 12 30.19  24.50  27.34 
2009 01 30.86  24.05  27.45 
2009 02 31.45  24.62  28.03 
2009 03 31.30  25.15  28.22 
2009 04 31.30  26.25  28.77 
2009 05 30.34  26.11  28.22 
2009 06 30.85  27.10  28.97 
2009 07 30.29  26.52  28.40 
2009 08 30.09  26.90  28.49 
2009 09 29.69  26.50  28.09 
2009 10 29.94  25.86  27.90 
2009 11 30.48  24.94  27.71 
2009 12 31.62  25.44  28.53 
2010 01 31.27  25.38  28.32 
2010 02 32.89  25.51  29.20 
2010 03 33.40  26.29  29.84 
2010 04 32.84  26.58  29.71 
2010 05 32.74  27.26  30.00 
2010 06 30.60  26.31  28.45 
2010 07 30.28  25.77  28.02 
2010 08 30.35  26.42  28.38 
2010 09 30.33  25.49  27.91 
2010 10 29.86  26.19  28.02 
2010 11 29.62  25.01  27.31 
2010 12 28.77  24.60  26.68 
2011 01 30.45  24.88  27.66 
2011 02 31.99  25.31  28.65 
2011 03 29.93  25.06  27.49 
2011 04 31.40  25.65  28.52 
2011 05 30.77  26.35  28.56 
2011 06 30.45  26.69  28.57 
2011 07 30.37  25.80  28.08 
2011 08 29.92  25.44  27.68 
2011 09 29.74  25.88  27.81 
2011 10 30.01  25.30  27.65 
2011 11 30.33  25.05  27.68 
2011 12 30.01  24.73  27.37 
2012 01 30.09  24.77  27.43 
2012 02 31.69  25.17  28.43 
2012 03 31.40  24.74  28.07 
2012 04 31.22  25.46  28.34 
2012 05 30.27  26.96  28.61 
2012 06 30.75  26.32  28.53 
2012 07 30.05  25.19  27.62 
2012 08 30.44  26.06  28.25 
2012 09 29.04  25.47  27.25 
2012 10 30.15  25.19  27.67 
2012 11 30.86  25.18  28.02 
2012 12 30.45  25.02  27.73 
2013 01 31.30  25.26  28.28 
2013 02 31.94  25.08  28.51 
2013 03 32.68  25.71  29.20 
2013 04 31.63  26.10  28.86 
2013 05 31.47  26.38  28.92 
2013 06 30.54  26.83  28.68 
2013 07 29.83  25.55  27.68 
2013 08 30.15  25.90  28.02 
2013 09 30.01  26.47  28.24 
2013 10 29.74  25.01  27.37 
2013 11 30.12  25.06  27.59 
2013 12 30.67  24.35  27.51 
