1985 12 28.00  13.90  20.95 
1986 01 27.70  14.00  20.85 
1986 02 28.10  14.30  21.20 
1986 03 27.90  14.50  21.20 
1986 04 25.70  15.60  20.65 
1986 05 24.90  14.50  19.70 
1986 06 23.90  14.30  19.10 
1986 07 24.70  14.10  19.40 
1986 08 26.30  13.20  19.75 
1986 09 26.30 -99.99 -99.99 
1986 10 27.00  14.20  20.60 
1986 11 26.20  14.70  20.45 
1986 12 26.10 -99.99 -99.99 
1987 01 27.80 -99.99 -99.99 
1987 02 27.30 -99.99 -99.99 
1987 03 27.90  15.70  21.80 
1987 04 27.00  15.80  21.40 
1987 05 25.40  15.20  20.29 
1987 06 25.60  14.70  20.15 
1987 07 26.00  13.50  19.75 
1987 08 25.70  13.90  19.79 
1987 09 28.00  14.20  21.10 
1987 10 27.05  14.90  20.97 
1987 12 28.25  14.25  21.25 
1988 01 27.50  14.05  20.77 
1988 02 28.30  15.25  21.77 
1988 03 27.35  14.70  21.02 
1988 04 26.35  15.95  21.15 
1988 05 26.20  15.05  20.62 
1988 06 25.05  13.55  19.29 
1988 07 24.85  14.40  19.62 
1988 08 25.50  13.80  19.65 
1988 09 25.90  13.65  19.77 
1988 10 26.80  14.45  20.62 
1988 11 26.45  14.20  20.32 
1988 12 26.85  14.45  20.65 
1989 01 27.25  13.55  20.40 
1989 02 28.90  15.00  21.95 
1989 03 28.25  14.70  21.47 
1989 04 25.85  14.40  20.12 
1989 05 25.30  14.80  20.04 
1989 06 25.15  14.05  19.60 
1989 07 24.90  14.30  19.60 
1989 08 99.99  14.00 -99.99 
1989 09 25.50  14.10  19.79 
1989 10 26.00  14.70  20.35 
1989 11 26.40  15.20  20.80 
1989 12 26.20  14.50  20.35 
1990 01 27.40  14.20  20.80 
1990 02 27.20  14.80  21.00 
1990 03 24.60  15.60  20.10 
1990 04 25.10  15.60  20.35 
1990 05 99.99  14.60 -99.99 
1990 07 99.99  12.80 -99.99 
1990 08 25.10  12.80  18.95 
1990 09 26.00  12.30  19.15 
1990 12 26.50  14.20  20.35 
1991 01 27.10  14.50  20.80 
1991 02 28.70  14.30  21.50 
1991 03 29.00  15.10  22.05 
1991 04 25.80  14.90  20.34 
1991 05 25.50  15.20  20.35 
1991 06 25.00  14.80  19.90 
1991 07 24.30  13.70  19.00 
1991 08 25.00  13.30  19.15 
1991 09 26.80  13.00  19.90 
1991 10 24.60  13.30  18.95 
1991 11 99.99  14.60 -99.99 
1991 12 27.00  14.20  20.60 
1992 01 29.00  14.60  21.80 
1992 02 28.50  14.70  21.60 
1992 03 30.20  15.50  22.85 
1992 04 27.30  15.50  21.40 
1992 05 26.40  14.90  20.65 
1992 06 25.60  14.40  20.00 
1992 07 24.90  13.00  18.95 
1992 08 25.30  13.20  19.25 
1992 09 26.60  12.50  19.54 
1992 10 25.40  13.60  19.50 
1992 12 26.70  13.50  20.10 
1993 01 25.80  14.30  20.04 
1993 02 26.50 -99.99 -99.99 
1993 04 27.30  14.70  21.00 
1993 05 25.80  14.90  20.34 
1993 06 25.40  14.10  19.75 
1993 07 25.50  13.60  19.54 
1993 08 26.10  12.70  19.40 
1993 09 26.50  12.50  19.50 
1993 10 27.70  13.60  20.65 
1993 11 27.50  14.20  20.85 
1993 12 28.60  14.40  21.50 
1994 01 29.90  13.30  21.60 
1994 02 30.10  13.70  21.90 
1994 03 28.30  14.30  21.30 
1994 04 27.20  14.50  20.85 
1994 05 25.60  14.30  19.95 
1994 06 25.20  13.60  19.40 
1994 07 24.90  13.40  19.15 
1994 08 25.20  13.60  19.40 
1994 09 26.40  13.20  19.79 
1994 10 25.60  13.60  19.60 
1994 11 24.10  14.00  19.04 
1994 12 27.50  13.20  20.35 
1995 01 29.10  13.20  21.15 
1995 02 28.50  14.10  21.30 
1995 03 28.00  14.80  21.40 
1995 04 27.30  15.50  21.40 
1995 05 26.30  14.60  20.45 
1995 06 26.00  14.50  20.25 
1995 07 24.70  13.40  19.04 
1995 08 26.50  13.10  19.79 
1995 09 26.60  13.20  19.90 
1995 10 26.50  13.60  20.04 
1995 11 25.80  13.70  19.75 
1995 12 27.20  12.50  19.85 
1996 01 28.00  14.00  21.00 
1996 02 27.60  14.10  20.85 
1996 03 27.20  14.80  21.00 
1996 04 26.80  14.70  20.75 
1996 05 25.80  15.20  20.50 
1996 06 25.00  14.90  19.95 
1996 07 24.70  14.00  19.35 
1996 08 25.90  14.00  19.95 
1996 09 26.70  13.90  20.29 
1996 10 27.10  14.60  20.85 
1996 11 26.30  14.90  20.59 
1996 12 27.90  14.20  21.05 
1997 01 28.20  14.00  21.10 
1997 02 32.00  12.80  22.40 
1997 03 32.20  15.80  24.00 
1997 04 26.30  15.50  20.90 
1997 05 26.50  13.90  20.20 
1997 06 26.10  13.80  19.95 
1997 07 25.20  14.20  19.70 
1997 08 26.80  13.30  20.04 
1997 09 29.00  13.20  21.10 
1997 10 25.30  15.10  20.20 
1997 11 24.80  15.20  20.00 
1997 12 25.50  14.80  20.15 
1998 01 25.80  14.70  20.25 
1998 02 26.20  14.70  20.45 
1998 03 28.40  15.10  21.75 
1998 04 27.00  15.80  21.40 
1998 05 25.80  15.80  20.80 
1998 06 24.90  13.80  19.35 
1998 07 23.40  13.90  18.65 
1998 08 23.20  15.00  19.10 
1998 09 23.70  14.30  19.00 
1998 10 23.40  15.00  19.20 
1999 03 25.30  15.60  20.45 
1999 04 24.20  15.60  19.90 
2001 01 23.60  14.50  19.04 
2001 02 23.90  14.80  19.35 
2001 03 24.50  15.40  19.95 
2001 04 23.90  16.00  19.95 
2001 05 24.30  15.50  19.90 
2001 06 23.80  14.80  19.29 
2002 03 25.00  15.80  20.40 
2002 04 27.70  16.29  22.00 
2002 06 25.70  15.30  20.50 
2002 08 24.70  14.40  19.54 
2002 09 24.50  15.60  20.04 
2002 10 25.90  16.00  20.95 
2002 11 23.70  15.80  19.75 
2003 02 29.50  16.40  22.95 
2003 03 29.30  16.90  23.09 
2003 04 27.80  16.50  22.15 
2003 05 26.30  15.70  21.00 
2003 06 25.50  14.90  20.20 
2003 07 25.20  14.50  19.85 
2003 08 25.40  15.40  20.40 
2003 09 25.40  14.80  20.10 
2003 10 27.50  16.20  21.85 
2003 11 27.70  15.80  21.75 
2003 12 27.60  15.10  21.35 
2004 01 28.70  15.90  22.30 
2004 02 28.10  17.00  22.55 
2004 03 28.40  16.50  22.45 
2004 04 99.99  16.50 -99.99 
2004 05 27.30  15.40  21.34 
2004 06 26.20  14.90  20.55 
2004 07 25.80  13.80  19.79 
2004 08 26.30  15.00  20.65 
2004 09 26.60  14.60  20.60 
2004 10 99.99  16.40 -99.99 
2004 11 25.80  15.80  20.80 
2004 12 27.00  15.60  21.30 
