1975 09 30.70  26.50  28.60 
1975 10 29.00  25.10  27.05 
1975 11 27.30  24.10  25.70 
1975 12 24.60  21.40  23.00 
1976 01 24.40  21.40  22.90 
1976 02 25.80  22.30  24.05 
1976 03 27.80  23.00  25.40 
1976 04 99.99  26.30 -99.99 
1976 05 31.50  27.30  29.40 
1976 06 31.00 -99.99 -99.99 
1976 07 30.80  27.80  29.30 
1976 08 30.20  26.70  28.45 
1976 09 31.00  26.80  28.90 
1976 10 29.60  25.80  27.70 
1976 11 26.90  23.80  25.34 
1976 12 26.20  22.90  24.55 
1977 01 24.90  21.40  23.15 
1977 02 24.00  19.60  21.80 
1977 03 26.00  21.80  23.90 
1977 04 29.50  25.40  27.45 
1977 05 32.40  28.00  30.20 
1977 06 32.30  28.80  30.55 
1977 07 31.00  27.60  29.30 
1977 08 31.30  27.50  29.40 
1977 09 29.80  26.10  27.95 
1977 10 29.70  25.90  27.80 
1977 11 27.00  23.80  25.40 
1977 12 26.80  23.00  24.90 
1978 01 26.30  22.30  24.30 
1978 02 26.70  22.50  24.60 
1978 03 29.40  24.60  27.00 
1978 04 30.60  26.40  28.50 
1978 05 31.60  28.00  29.80 
1978 06 31.10  27.50  29.30 
1978 07 31.70  27.60  29.65 
1978 08 30.50  26.90  28.70 
1978 09 28.70  25.10  26.90 
1978 10 26.40  23.30  24.84 
1978 11 26.30  23.20  24.75 
1978 12 26.10  22.90  24.50 
1979 01 26.80  22.70  24.75 
1979 02 26.80  23.10  24.95 
1979 03 29.30  25.30  27.30 
1979 04 30.50  25.40  27.95 
1979 05 31.20  27.40  29.30 
1979 06 31.20  27.30  29.25 
1979 07 31.40  27.40  29.40 
1979 08 30.70  27.40  29.05 
1979 09 30.90  27.00  28.95 
1979 10 28.50  24.90  26.70 
1979 11 27.00  23.50  25.25 
1979 12 26.10  22.60  24.35 
1980 01 25.70  22.30  24.00 
1980 02 26.00  22.40  24.20 
1980 03 28.80  24.80  26.80 
1980 04 30.20  26.20  28.20 
1980 05 31.30  27.20  29.25 
1980 06 31.10  27.00  29.05 
1980 07 31.60  27.70  29.65 
1980 08 31.50  27.20  29.35 
1980 09 30.00  26.00  28.00 
1980 10 29.60  26.00  27.80 
1980 11 27.40  24.30  25.84 
1980 12 26.20  23.30  24.75 
1981 01 25.00  21.70  23.35 
1981 02 26.70  22.80  24.75 
1981 03 29.30  25.00  27.15 
1981 04 31.70  27.00  29.35 
1981 05 31.40  26.70  29.05 
1981 06 30.00  26.40  28.20 
1981 07 30.80  27.10  28.95 
1981 08 99.99  26.80 -99.99 
1981 09 30.80  27.00  28.90 
1981 10 29.70  25.90  27.80 
1981 11 27.80  24.50  26.15 
1981 12 24.90  21.00  22.95 
1982 01 24.80  20.70  22.75 
1982 02 26.80  22.00  24.40 
1982 03 29.10  24.70  26.90 
1982 04 29.50  25.30  27.40 
1982 05 31.40  27.00  29.20 
1982 06 31.60  27.30  29.45 
1982 07 30.60  27.40  29.00 
1982 08 31.10  27.10  29.10 
1982 09 29.90  25.80  27.84 
1982 10 29.60  25.50  27.55 
1982 11 28.70  25.30  27.00 
1982 12 25.80  22.20  24.00 
1983 01 26.00  22.40  24.20 
1983 02 27.80  23.60  25.70 
1983 03 28.70  25.00  26.85 
1983 04 30.30  26.20  28.25 
1983 05 31.70  28.00  29.85 
1983 06 31.30  27.70  29.50 
1983 07 31.30  27.30  29.30 
1983 08 31.00  26.60  28.80 
1983 09 31.90  26.80  29.34 
1983 10 30.00  25.70  27.85 
1983 11 26.80  23.90  25.34 
1983 12 25.40  22.50  23.95 
1984 01 24.50  21.00  22.75 
1984 02 25.70  21.60  23.65 
1984 03 28.50  23.70  26.10 
1984 04 31.10  26.50  28.80 
1984 05 31.00  26.90  28.95 
1984 06 30.60  26.70  28.65 
1984 07 29.90  26.50  28.20 
1984 08 30.10  26.20  28.15 
1984 09 30.20  25.50  27.85 
1984 10 29.00  25.10  27.05 
1984 11 27.50  24.10  25.80 
1984 12 25.90  22.70  24.30 
1985 01 25.70  21.40  23.55 
1985 02 28.30  23.30  25.80 
1985 03 28.30  23.90  26.09 
1985 04 29.50  25.10  27.30 
1985 05 31.10  26.70  28.90 
1985 06 30.90  27.20  29.05 
1985 07 30.90  27.00  28.95 
1985 08 31.50  27.60  29.55 
1985 09 29.90  25.40  27.65 
1985 10 28.40  24.50  26.45 
1985 11 28.10  24.70  26.40 
1985 12 26.40  23.00  24.70 
1986 01 24.60  21.30  22.95 
1986 02 26.20  22.20  24.20 
1986 03 27.30  23.20  25.25 
1986 04 31.30  26.00  28.65 
1986 05 31.80  27.00  29.40 
1986 06 31.20  27.40  29.30 
1986 07 31.60  27.10  29.35 
1986 08 31.30  26.40  28.84 
1986 09 30.50  25.60  28.05 
1986 10 29.00  25.00  27.00 
1986 11 26.70  23.80  25.25 
1986 12 26.00  22.70  24.35 
1987 01 25.60  22.20  23.90 
1987 02 26.90  22.20  24.55 
1987 03 29.10  24.70  26.90 
1987 04 30.50  26.20  28.35 
1987 05 31.80  28.00  29.90 
1987 06 32.20  28.00  30.10 
1987 07 31.50  27.90  29.70 
1987 08 30.70  26.80  28.75 
1987 09 31.00  26.30  28.65 
1987 10 30.80  26.50  28.65 
1987 11 29.50  25.80  27.65 
1987 12 25.20  22.30  23.75 
1988 01 26.30  22.70  24.50 
1988 02 27.70  23.30  25.50 
1988 03 29.30  24.70  27.00 
1988 04 30.60  26.10  28.35 
1988 05 32.30  27.70  30.00 
1988 06 31.20  27.30  29.25 
1988 07 31.60  28.20  29.90 
1988 08 31.00  28.00  29.50 
1988 09 31.00  26.80  28.90 
1988 10 28.80  25.00  26.90 
1988 11 26.20  23.70  24.95 
1988 12 25.30  22.20  23.75 
1989 01 26.00  22.50  24.25 
1989 02 26.30  22.30  24.30 
1989 03 27.50  23.40  25.45 
1989 04 30.00  26.30  28.15 
1989 05 31.40  26.90  29.15 
1989 06 30.60  27.10  28.85 
1989 07 30.60  26.40  28.50 
1989 08 30.80  26.20  28.50 
1989 09 30.90  26.10  28.50 
1989 11 27.50  24.00  25.75 
1989 12 26.40  22.00  24.20 
1990 01 26.80  22.20  24.50 
1990 02 99.99  22.30 -99.99 
1990 03 99.99  24.20 -99.99 
1990 04 99.99  26.40 -99.99 
1990 05 31.60  26.60  29.10 
1990 06 31.00  27.00  29.00 
1990 07 31.50  27.40  29.45 
1990 08 31.80  26.80  29.30 
1990 09 30.20  25.60  27.90 
1990 10 29.00  25.00  27.00 
1990 11 28.10  24.10  26.10 
1991 03 29.30 -99.99 -99.99 
1991 04 30.40 -99.99 -99.99 
1991 06 31.70  27.50  29.60 
1991 07 30.50 -99.99 -99.99 
1991 08 30.70  26.60  28.65 
1991 09 30.80  26.30  28.55 
1991 10 29.10  24.90  27.00 
1991 11 27.40  23.90  25.65 
1991 12 26.70  23.00  24.85 
1992 01 25.40  21.00  23.20 
1992 02 27.60  22.90  25.25 
1992 03 29.70  24.60  27.15 
1992 04 30.40  26.30  28.34 
1992 05 32.50  27.50  30.00 
1992 06 31.50  27.20  29.35 
1992 07 30.10  26.10  28.10 
1992 08 31.00  26.20  28.60 
1992 09 30.90  26.40  28.65 
1992 10 28.50  24.30  26.40 
1992 11 26.70  23.20  24.95 
1992 12 27.10  23.00  25.05 
1993 01 26.00  21.50  23.75 
1993 02 26.70  21.60  24.15 
1993 03 28.60  23.90  26.25 
1993 04 30.70  26.20  28.45 
1993 05 32.40  27.60  30.00 
1993 06 32.40  28.90  30.65 
1993 07 32.20  28.20  30.20 
1993 08 31.30  26.90  29.09 
1993 09 30.40  25.50  27.95 
1993 10 29.00  24.50  26.75 
1993 11 28.40  24.90  26.65 
1993 12 26.00  22.20  24.10 
1994 01 26.20  21.70  23.95 
1994 02 28.20  23.40  25.80 
1994 03 29.40  24.30  26.84 
1994 04 31.60  26.20  28.90 
1994 05 31.80  27.10  29.45 
1994 06 31.00  27.30  29.15 
1994 07 99.99  27.30 -99.99 
1994 08 99.99  27.00 -99.99 
1994 09 30.40  26.00  28.20 
1994 10 99.99  24.80 -99.99 
1994 11 99.99  24.70 -99.99 
1994 12 99.99  23.90 -99.99 
1995 01 99.99  21.80 -99.99 
1995 02 99.99  21.50 -99.99 
1995 03 99.99  23.80 -99.99 
1995 04 99.99  25.80 -99.99 
1995 05 99.99  26.80 -99.99 
1995 06 99.99  28.00 -99.99 
1995 07 99.99  27.70 -99.99 
1995 08 99.99  27.00 -99.99 
1995 09 99.99  25.40 -99.99 
1995 10 99.99  25.40 -99.99 
1995 11 99.99  24.00 -99.99 
1996 01 99.99  21.80 -99.99 
1996 02 99.99  21.10 -99.99 
1996 03 99.99  23.60 -99.99 
1996 04 99.99  24.80 -99.99 
1996 05 99.99  26.00 -99.99 
1996 06 99.99  26.90 -99.99 
1996 07 99.99  26.80 -99.99 
1996 10 99.99  24.80 -99.99 
1996 11 99.99  24.40 -99.99 
1996 12 99.99  23.30 -99.99 
1997 01 99.99  21.20 -99.99 
1997 02 99.99  22.40 -99.99 
1997 03 99.99  23.60 -99.99 
1997 04 99.99  24.80 -99.99 
1997 05 99.99  26.80 -99.99 
1997 06 99.99  27.80 -99.99 
1997 07 99.99  26.90 -99.99 
1997 08 99.99  26.90 -99.99 
1997 09 99.99  24.50 -99.99 
1997 10 99.99  25.20 -99.99 
1997 11 99.99  24.10 -99.99 
1997 12 99.99  23.20 -99.99 
1998 01 99.99  22.60 -99.99 
1998 02 99.99  24.10 -99.99 
1998 03 99.99  25.40 -99.99 
1998 04 99.99  25.70 -99.99 
1998 05 99.99  26.90 -99.99 
1998 06 99.99  27.90 -99.99 
1998 07 99.99  27.50 -99.99 
1998 08 99.99  26.60 -99.99 
1998 09 99.99  25.30 -99.99 
1998 10 99.99  25.30 -99.99 
1998 11 99.99  24.60 -99.99 
1998 12 99.99  23.30 -99.99 
1999 01 99.99  22.70 -99.99 
1999 03 31.10  24.10  27.60 
1999 04 31.60  25.60  28.60 
1999 05 99.99  26.10 -99.99 
1999 06 99.99  27.30 -99.99 
1999 07 32.40  27.40  29.90 
1999 08 99.99  26.70 -99.99 
1999 09 31.10  25.30  28.20 
1999 10 30.50  25.10  27.80 
1999 11 29.10  24.50  26.80 
1999 12 25.90  22.90  24.40 
2000 01 99.99  22.30 -99.99 
2000 02 26.90  22.20  24.55 
2000 03 29.70  23.90  26.80 
2000 04 31.90  25.70  28.80 
2000 05 32.09  25.90  29.00 
2000 06 32.40  26.30  29.35 
2000 08 32.59  26.60  29.59 
2000 09 30.80  25.00  27.90 
2000 10 30.70  25.40  28.05 
2000 11 27.80  24.20  26.00 
2000 12 26.80  23.40  25.09 
2001 01 28.00  22.80  25.40 
2001 02 27.80  22.60  25.20 
2001 03 30.20  24.50  27.35 
2001 04 32.80  26.00  29.40 
2001 05 33.40  27.00  30.20 
2001 06 33.50  27.50  30.50 
2001 07 33.20  27.30  30.25 
2001 08 32.30  26.30  29.30 
2001 09 31.70  25.90  28.80 
2001 10 31.40  25.80  28.59 
2001 11 28.40  24.10  26.25 
2001 12 27.30  23.30  25.30 
2002 01 26.80  22.20  24.50 
2002 02 27.70  22.20  24.95 
2002 03 30.00  23.90  26.95 
2002 04 33.09  25.90  29.50 
2002 05 33.80  27.10  30.45 
2002 06 34.00  27.70  30.85 
2002 07 33.30  27.20  30.25 
2002 08 31.60  26.20  28.90 
2002 09 31.50  25.40  28.45 
2002 10 30.70  25.10  27.90 
2002 11 29.70  25.00  27.35 
2002 12 29.50  23.80  26.65 
2003 01 26.60  21.90  24.25 
2003 02 28.70  22.30  25.50 
2003 03 31.00  23.80  27.40 
2003 04 33.40  25.80  29.60 
2003 05 33.70  26.70  30.20 
2003 06 33.20  27.10  30.15 
2003 07 33.00  26.10  29.55 
2003 08 32.20  26.30  29.25 
2003 09 31.60  25.30  28.45 
2003 10 30.40  25.10  27.75 
2003 11 28.80  23.90  26.34 
2003 12 26.20  22.30  24.25 
2004 01 27.00  21.80  24.40 
2004 02 27.60  21.40  24.50 
2004 03 30.30  23.00  26.65 
2004 04 32.80  25.20  29.00 
2004 05 34.59  26.90  30.75 
2004 06 33.09  26.70  29.90 
2004 07 33.09  26.70  29.90 
2004 08 33.40  27.10  30.25 
2004 09 31.20  25.50  28.35 
2004 10 30.70  25.10  27.90 
2004 11 29.80  24.90  27.34 
2004 12 27.50  22.90  25.20 
