1977 01 99.99 -99.99 -10.70 
1977 02 99.99 -99.99 -14.10 
1977 03 99.99 -99.99   3.80 
1977 04 99.99 -99.99   9.80 
1977 05 99.99 -99.99  12.70 
1977 06 99.99 -99.99  18.79 
1977 08 99.99 -99.99  18.20 
1977 09 99.99 -99.99  12.30 
1977 10 99.99 -99.99   9.70 
1978 01 99.99 -99.99 -13.00 
1978 02 99.99 -99.99  -6.90 
1978 03 99.99 -99.99   1.20 
1978 04 99.99 -99.99  10.00 
1978 05 99.99 -99.99  14.10 
1978 06 99.99 -99.99  18.60 
1978 07 99.99 -99.99  19.90 
1978 08 99.99 -99.99  18.50 
1978 09 99.99 -99.99  12.90 
1978 10 99.99 -99.99   6.80 
1978 11 99.99 -99.99   1.70 
1978 12 99.99 -99.99   -.20 
1979 01 99.99 -99.99  -5.50 
1979 02 99.99 -99.99  -1.80 
1979 03 99.99 -99.99   -.60 
1979 04 99.99 -99.99  10.50 
1979 05 99.99 -99.99   9.50 
1979 07 99.99 -99.99  19.70 
1979 08 99.99 -99.99  16.50 
1979 09 99.99 -99.99  12.60 
1979 10 99.99 -99.99   8.39 
1979 11 99.99 -99.99    . 0 
1979 12 99.99 -99.99  -4.00 
1980 01 99.99 -99.99  -9.80 
1980 02 99.99 -99.99  -4.50 
1980 03 99.99 -99.99   1.10 
1980 04 99.99 -99.99  10.30 
1980 05 99.99 -99.99  13.40 
1980 06 99.99 -99.99  17.79 
1980 07 99.99 -99.99  16.40 
1980 08 99.99 -99.99  16.50 
1980 09 99.99 -99.99  12.80 
1980 10 99.99 -99.99   7.90 
1980 11 99.99 -99.99   3.90 
1980 12 99.99 -99.99  -2.70 
1981 01 99.99 -99.99  -9.10 
1981 02 99.99 -99.99  -9.20 
1981 03 99.99 -99.99   1.60 
1981 04 99.99 -99.99  10.20 
1981 05 99.99 -99.99  13.60 
1981 06 99.99 -99.99  16.29 
1981 07 99.99 -99.99  18.90 
1981 08 99.99 -99.99  17.10 
1981 09 99.99 -99.99  12.70 
1981 10 99.99 -99.99   6.30 
1981 11 99.99 -99.99   1.00 
1981 12 99.99 -99.99  -3.50 
1982 01 99.99 -99.99  -4.19 
1982 02 99.99 -99.99  -5.50 
1982 03 99.99 -99.99   -.60 
1982 04 99.99 -99.99   9.20 
1982 05 99.99 -99.99  12.80 
1982 06 99.99 -99.99  16.29 
1982 07 99.99 -99.99  18.00 
1982 08 99.99 -99.99  17.70 
1982 09 99.99 -99.99  11.30 
1982 10 99.99 -99.99   7.90 
1982 11 99.99 -99.99   2.50 
1983 02 99.99 -99.99  -9.89 
1983 04 99.99 -99.99   9.30 
1983 05 99.99 -99.99  13.70 
1983 06 99.99 -99.99  22.10 
1983 07 99.99 -99.99  25.90 
1983 08 99.99 -99.99  21.70 
1983 09 99.99 -99.99  13.50 
1983 10 99.99 -99.99   6.90 
1983 11 99.99 -99.99   5.70 
1983 12 99.99 -99.99  -2.50 
1984 01 99.99 -99.99 -10.80 
1984 02 99.99 -99.99 -14.10 
1984 07 99.99 -99.99  19.79 
1984 08 99.99 -99.99  21.20 
1984 11 99.99 -99.99   3.40 
1984 12 99.99 -99.99  -6.50 
1985 01 99.99 -99.99 -11.40 
1985 02 99.99 -99.99  -3.00 
1985 03 99.99 -99.99   4.90 
1985 04 99.99 -99.99   9.80 
1985 05 99.99 -99.99  13.00 
1985 06 99.99 -99.99  17.50 
1985 07 99.99 -99.99  20.10 
1985 08 99.99 -99.99  17.29 
1985 09 99.99 -99.99  12.70 
1985 10 99.99 -99.99   7.80 
1985 11 99.99 -99.99   2.60 
1985 12 99.99 -99.99  -2.00 
1986 03 99.99 -99.99    .30 
1986 04 99.99 -99.99   8.30 
1986 05 99.99 -99.99  12.40 
1986 06 99.99 -99.99  17.20 
1986 07 99.99 -99.99  18.79 
1986 08 99.99 -99.99  17.60 
1986 09 99.99 -99.99  12.70 
1986 10 99.99 -99.99   7.80 
1987 01 99.99 -99.99  -3.20 
1987 02 99.99 -99.99  -5.20 
1987 03 99.99 -99.99  -5.20 
1987 04 99.99 -99.99   9.20 
1987 05 99.99 -99.99  13.00 
1987 06 99.99 -99.99  16.10 
1987 07 99.99 -99.99  18.00 
1987 08 99.99 -99.99  18.79 
1987 09 99.99 -99.99  13.60 
1987 10 99.99 -99.99   6.30 
1987 11 99.99 -99.99   1.10 
1987 12 99.99 -99.99   2.20 
1988 01 99.99 -99.99  -4.80 
1988 02 99.99 -99.99  -2.80 
1988 03 99.99 -99.99   2.30 
1988 04 99.99 -99.99  10.60 
1988 08 99.99 -99.99  17.70 
1988 09 99.99 -99.99  13.60 
1988 10 99.99 -99.99   5.80 
1988 11 99.99 -99.99   2.80 
1988 12 99.99 -99.99  -2.40 
1989 02 99.99 -99.99 -12.90 
1989 03 99.99 -99.99   -.20 
1989 04 99.99 -99.99   6.50 
1989 05 99.99 -99.99  10.50 
1989 06 99.99 -99.99  15.90 
1989 07 99.99 -99.99  18.10 
1989 09 99.99 -99.99  13.20 
1989 10 99.99 -99.99   7.00 
1989 11 99.99 -99.99   2.60 
1989 12 99.99 -99.99  -3.30 
1990 01 99.99 -99.99  -5.60 
1990 02 99.99 -99.99  -8.30 
1990 03 99.99 -99.99  -2.90 
1990 04 99.99 -99.99   8.00 
1990 05 99.99 -99.99  15.20 
1990 06 99.99 -99.99  17.60 
1990 07 99.99 -99.99  16.60 
1990 08 99.99 -99.99  19.50 
1990 09 99.99 -99.99  14.40 
1990 10 99.99 -99.99   7.10 
1990 11 99.99 -99.99   1.70 
1990 12 99.99 -99.99  -4.40 
1991 01 99.99 -99.99 -10.60 
1991 03 99.99 -99.99  -4.50 
1991 05 99.99 -99.99  11.50 
1991 06 99.99 -99.99  16.50 
1991 07 99.99 -99.99  18.79 
1991 08 99.99 -99.99  18.10 
1991 09 99.99 -99.99  13.40 
1991 11 99.99 -99.99   2.30 
