1987 07 99.99  25.90 -99.99 
1987 08 99.99  25.20 -99.99 
1987 09 99.99  26.00 -99.99 
1987 11 99.99  23.50 -99.99 
1987 12 99.99  21.30 -99.99 
1988 01 99.99  21.60 -99.99 
1988 02 99.99  20.40 -99.99 
1988 03 99.99  21.80 -99.99 
1988 04 99.99  23.10 -99.99 
1988 05 99.99  24.50 -99.99 
1988 07 99.99  25.90 -99.99 
1988 08 99.99  25.50 -99.99 
1988 10 99.99  25.10 -99.99 
1988 11 99.99  23.10 -99.99 
1988 12 99.99  21.20 -99.99 
1989 01 99.99  22.00 -99.99 
1989 02 99.99  21.50 -99.99 
1989 03 99.99  21.40 -99.99 
1989 04 99.99  23.10 -99.99 
1989 05 99.99  24.40 -99.99 
1989 06 99.99  25.10 -99.99 
1989 07 99.99  24.40 -99.99 
1989 08 99.99  25.10 -99.99 
1989 09 99.99  25.20 -99.99 
1989 10 99.99  24.00 -99.99 
1989 11 99.99  23.90 -99.99 
1989 12 99.99  20.50 -99.99 
1990 01 99.99  21.70 -99.99 
1990 02 99.99  22.30 -99.99 
1990 03 99.99  22.10 -99.99 
1990 04 99.99  23.60 -99.99 
1990 05 99.99  24.80 -99.99 
1990 06 99.99  25.60 -99.99 
1990 07 99.99  25.10 -99.99 
1990 08 99.99  24.70 -99.99 
1990 09 99.99  23.20 -99.99 
1990 10 99.99  24.60 -99.99 
1990 11 99.99  23.20 -99.99 
1990 12 99.99  21.60 -99.99 
1991 01 99.99  22.00 -99.99 
1991 02 27.60  20.90  24.25 
1991 03 99.99  21.90 -99.99 
1991 04 99.99  24.10 -99.99 
1991 06 99.99  26.10 -99.99 
1991 07 99.99  25.70 -99.99 
1991 08 99.99  25.10 -99.99 
1991 09 99.99  25.20 -99.99 
1991 11 99.99  22.10 -99.99 
1991 12 99.99  22.10 -99.99 
1992 01 99.99  20.90 -99.99 
1992 02 99.99  20.50 -99.99 
1992 03 99.99  21.80 -99.99 
1992 04 31.30  23.90  27.59 
1992 05 31.10  23.90  27.50 
1992 06 34.09  25.40  29.75 
1992 07 33.50  25.60  29.55 
1992 08 32.00  25.60  28.80 
1992 09 31.40 -99.99 -99.99 
1992 10 30.60  24.70  27.65 
1992 11 29.80  23.20  26.50 
1992 12 28.10  22.50  25.30 
1993 01 28.10  22.30  25.20 
1993 02 28.40  21.00  24.70 
1993 03 28.20  21.50  24.85 
1993 04 28.90  22.60  25.75 
1993 05 99.99  24.00 -99.99 
1993 06 99.99  25.20 -99.99 
1993 07 29.90  25.10  27.50 
1993 12 26.30 -99.99 -99.99 
1994 02 26.90  22.20  24.55 
1994 03 28.30 -99.99 -99.99 
1994 07 30.50  25.40  27.95 
1994 10 99.99  24.80 -99.99 
1994 11 28.10  23.40  25.75 
1995 05 99.99  25.80 -99.99 
1995 07 30.90 -99.99 -99.99 
1995 08 30.30 -99.99 -99.99 
1996 02 26.20  19.10  22.65 
1996 03 28.10  19.90  24.00 
1996 05 29.70  24.60  27.15 
1996 06 30.10 -99.99 -99.99 
1996 07 30.20 -99.99 -99.99 
1996 08 29.70 -99.99 -99.99 
1996 09 30.40 -99.99 -99.99 
1996 10 29.90  24.80  27.34 
1996 11 27.40  23.60  25.50 
1996 12 99.99  20.60 -99.99 
1997 01 26.10 -99.99 -99.99 
1998 03 29.00  19.29  24.15 
1999 11 99.99  21.30 -99.99 
2000 01 26.00  18.29  22.15 
2000 02 26.80  19.10  22.95 
2000 03 29.00  20.10  24.55 
2000 04 29.60 -99.99 -99.99 
2000 05 31.20  23.50  27.35 
2000 06 30.20 -99.99 -99.99 
2000 07 31.20  23.80  27.50 
2000 08 99.99  23.80 -99.99 
2000 09 31.40  23.80  27.59 
2000 10 99.99  22.60 -99.99 
2000 11 28.80 -99.99 -99.99 
2001 01 99.99  17.70 -99.99 
2001 02 28.30  20.60  24.45 
2001 03 99.99  20.40 -99.99 
2001 06 31.20 -99.99 -99.99 
2001 08 30.30 -99.99 -99.99 
2001 10 99.99  23.30 -99.99 
2001 11 99.99  21.10 -99.99 
2001 12 27.00 -99.99 -99.99 
2002 01 26.50  19.70  23.10 
2002 02 26.70  20.40  23.55 
2002 03 99.99  19.60 -99.99 
2002 04 32.30  21.00  26.65 
2002 05 32.30  22.40  27.34 
2002 06 31.80 -99.99 -99.99 
2002 08 32.59 -99.99 -99.99 
2004 06 99.99  23.60 -99.99 
2004 07 32.50  22.70  27.60 
2004 08 99.99  23.40 -99.99 
2004 09 32.30  23.60  27.95 
2004 10 99.99  22.70 -99.99 
2004 11 30.10  20.80  25.45 
