1981 01 99.99 -99.99  25.90 
1981 02 99.99 -99.99  30.30 
1981 03 99.99 -99.99  31.70 
1981 04 99.99 -99.99  31.60 
1981 05 99.99 -99.99  28.70 
1981 06 99.99 -99.99  27.80 
1981 07 99.99 -99.99  25.70 
1981 08 99.99 -99.99  25.20 
1981 09 99.99 -99.99  26.40 
1981 10 99.99 -99.99  29.30 
1981 11 99.99 -99.99  28.50 
1981 12 99.99 -99.99  28.40 
1982 01 99.99 -99.99  26.90 
1982 02 99.99 -99.99  29.10 
1982 03 99.99 -99.99  30.80 
1982 04 99.99 -99.99  31.30 
1982 05 99.99 -99.99  29.30 
1982 06 99.99 -99.99  27.30 
1982 07 99.99 -99.99  26.10 
1982 08 99.99 -99.99  25.30 
1982 09 99.99 -99.99  25.90 
1982 10 99.99 -99.99  27.00 
1982 11 99.99 -99.99  27.50 
1982 12 99.99 -99.99  26.90 
1983 01 99.99 -99.99  23.90 
1983 02 99.99 -99.99  30.40 
1983 03 99.99 -99.99  31.50 
1983 04 99.99 -99.99  32.59 
1983 05 99.99 -99.99  29.70 
1983 06 99.99 -99.99  26.60 
1983 07 99.99 -99.99  25.90 
1983 08 99.99 -99.99  25.90 
1983 09 99.99 -99.99  26.10 
1983 10 99.99 -99.99  28.80 
1983 11 99.99 -99.99  29.00 
1983 12 99.99 -99.99  28.10 
1984 01 99.99 -99.99  26.70 
1984 02 99.99 -99.99  28.80 
1984 03 99.99 -99.99  31.70 
1984 04 99.99 -99.99  30.80 
1984 05 99.99 -99.99  29.30 
1984 06 99.99 -99.99  27.70 
1984 07 99.99 -99.99  26.80 
1984 08 99.99 -99.99  26.30 
1984 09 99.99 -99.99  25.80 
1984 10 99.99 -99.99  28.00 
1984 11 99.99 -99.99  29.40 
1984 12 99.99 -99.99  26.40 
1985 01 99.99 -99.99  28.50 
1985 02 99.99 -99.99  28.50 
1985 03 99.99 -99.99  32.20 
1985 04 99.99 -99.99  31.30 
1985 05 99.99 -99.99  30.20 
1985 06 99.99 -99.99  27.90 
1985 07 99.99 -99.99  25.70 
1985 08 99.99 -99.99  25.40 
1985 09 99.99 -99.99  25.30 
1985 10 99.99 -99.99  28.20 
1985 11 99.99 -99.99  29.10 
1985 12 99.99 -99.99  25.80 
1986 01 99.99 -99.99  26.50 
1986 02 99.99 -99.99  30.70 
1986 03 99.99 -99.99  31.60 
1986 04 99.99 -99.99  31.90 
1986 05 99.99 -99.99  30.60 
1986 06 99.99 -99.99  27.60 
1986 07 99.99 -99.99  25.10 
1986 08 99.99 -99.99  25.20 
1986 09 99.99 -99.99  25.50 
1986 10 99.99 -99.99  27.80 
1986 11 99.99 -99.99  27.30 
1986 12 99.99 -99.99  25.70 
1987 01 99.99 -99.99  28.20 
1987 02 99.99 -99.99  30.50 
1987 03 99.99 -99.99  31.30 
1987 04 99.99 -99.99  33.30 
1987 05 99.99 -99.99  31.80 
1987 06 99.99 -99.99  27.90 
1987 07 99.99 -99.99  26.50 
1987 08 99.99 -99.99  25.80 
1987 09 99.99 -99.99  26.60 
1987 10 99.99 -99.99  28.10 
1987 11 99.99 -99.99  29.40 
1987 12 99.99 -99.99  27.40 
1988 01 99.99 -99.99  26.80 
1988 02 99.99 -99.99  29.60 
1988 03 99.99 -99.99  32.59 
1988 04 99.99 -99.99  31.50 
1988 05 99.99 -99.99  30.70 
1988 06 99.99 -99.99  27.20 
1988 07 99.99 -99.99  25.80 
1988 08 99.99 -99.99  25.30 
1988 09 99.99 -99.99  25.70 
1988 10 99.99 -99.99  28.90 
1988 11 99.99 -99.99  29.20 
1988 12 99.99 -99.99  26.10 
1989 01 99.99 -99.99  25.00 
1989 02 99.99 -99.99  27.50 
1989 03 99.99 -99.99  30.50 
1989 04 99.99 -99.99  32.09 
1989 05 99.99 -99.99  30.60 
1989 06 99.99 -99.99  27.20 
1989 07 99.99 -99.99  25.70 
1989 08 99.99 -99.99  25.00 
1989 09 99.99 -99.99  25.70 
1989 10 99.99 -99.99  27.20 
1989 11 99.99 -99.99  28.90 
1989 12 99.99 -99.99  26.90 
1990 01 99.99 -99.99  27.50 
1990 02 99.99 -99.99  28.60 
1990 03 99.99 -99.99  31.30 
1990 04 99.99 -99.99  31.60 
1990 05 99.99 -99.99  30.00 
1990 06 99.99 -99.99  27.60 
1990 07 99.99 -99.99  25.60 
1990 08 99.99 -99.99  25.80 
1990 09 99.99 -99.99  26.40 
1990 10 99.99 -99.99  28.80 
1990 11 99.99 -99.99  30.10 
1990 12 99.99 -99.99  28.60 
1997 04 35.40  24.70  30.05 
1997 05 33.59  23.20  28.40 
1997 06 30.90  22.00  26.45 
1997 07 30.30  21.90  26.09 
1997 08 30.10 -99.99 -99.99 
1997 10 33.70  22.80  28.25 
1997 11 36.30  23.00  29.65 
1997 12 35.09  21.90  28.50 
1998 01 34.30  20.50  27.40 
1998 02 37.90  24.30  31.10 
1998 03 38.40  25.30  31.85 
1998 04 38.80  27.20  33.00 
1998 05 35.20  25.30  30.25 
1998 06 31.60  22.70  27.15 
1998 07 30.30  22.40  26.34 
1998 08 29.30  21.80  25.55 
1998 09 29.90  21.60  25.75 
1998 10 35.30  23.00  29.15 
1998 11 36.09  22.50  29.30 
1998 12 34.50  21.30  27.90 
1999 01 35.00  21.40  28.20 
1999 02 35.40  22.70  29.05 
1999 06 33.80  23.40  28.59 
1999 08 28.40  21.80  25.09 
1999 09 29.50  21.20  25.35 
1999 11 35.80  22.80  29.30 
2000 02 33.30  20.80  27.05 
2000 10 32.40  22.30  27.35 
2000 11 35.59  22.80  29.20 
2001 04 37.40  26.90  32.15 
2001 05 34.00  24.70  29.35 
2001 07 29.60  22.20  25.90 
2001 08 27.13  24.12  25.62 
2001 09 28.41  24.54  26.47 
2001 10 29.91  25.29  27.60 
2001 11 31.09  25.94  28.51 
2001 12 31.24  26.15  28.69 
2002 01 30.50  24.26  27.38 
2002 02 31.73  26.41  29.07 
2002 07 28.17  25.02  26.59 
2002 08 27.51  24.06  25.78 
2002 11 31.27  26.03  28.65 
2003 01 30.50  25.53  28.01 
2003 02 31.61  27.34  29.47 
2003 03 32.04  27.12  29.58 
2003 04 31.36  26.69  29.02 
2003 05 30.97  26.59  28.78 
2003 06 28.78  24.90  26.84 
2003 08 28.12  24.24  26.18 
2003 11 30.69  25.38  28.03 
2003 12 31.13  25.43  28.28 
2004 01 30.70  25.78  28.24 
2004 02 31.48  26.01  28.74 
2004 03 32.20  26.68  29.44 
2004 04 30.71  26.09  28.40 
2004 05 30.02  25.75  27.88 
2004 06 28.57  24.47  26.52 
2004 07 27.09  23.76  25.42 
2004 08 27.30  24.14  25.72 
2004 09 28.25  24.45  26.35 
2004 10 29.47  24.55  27.00 
2004 11 31.00  25.67  28.33 
2004 12 31.36  26.47  28.91 
2005 01 30.41  23.85  27.13 
2005 02 31.72  27.02  29.37 
2005 03 31.68  27.08  29.38 
2005 04 31.70  27.38  29.54 
2005 05 30.40  26.00  28.20 
2005 06 28.78  24.96  26.87 
2005 09 28.47  24.83  26.65 
2005 10 29.67  25.17  27.42 
2006 03 31.85  26.82  29.33 
2006 04 31.82  27.44  29.63 
2006 05 30.39  25.36  27.87 
2006 06 29.96  24.94  27.45 
2006 07 28.37  25.32  26.84 
2006 11 31.27  25.31  28.29 
2007 01 30.74  22.42  26.58 
2007 02 31.39  26.82  29.10 
2007 04 31.00  26.59  28.79 
2007 05 30.82  25.87  28.34 
2010 03 32.50  28.20  30.35 
2010 06 29.49  25.36  27.42 
2010 12 32.48  22.28  27.38 
2011 03 34.88  27.27  31.07 
2011 07 29.60  23.05  26.32 
2011 09 29.34  22.92  26.13 
2011 10 31.24  23.18  27.21 
2011 11 33.93  23.18  28.56 
2012 01 31.07  24.87  27.97 
2012 02 30.81  26.40  28.60 
2012 06 29.13  24.31  26.72 
2013 04 31.61  26.35  28.98 
2013 05 30.84  25.11  27.97 
2013 06 29.32  25.54  27.43 
2013 07 27.88  24.63  26.25 
2013 08 27.74  23.79  25.76 
2013 09 28.43  24.65  26.54 
2013 10 29.48  25.29  27.38 
2013 11 30.96  25.96  28.46 
2013 12 30.95  25.56  28.25 
