1973 04 10.66    .31   5.48 
1973 05 16.62   6.59  11.61 
1973 06 23.76  12.75  18.25 
1973 07 26.82  15.50  21.16 
1973 08 99.99  16.14 -99.99 
1973 09 99.99   8.97 -99.99 
1973 10 99.99   4.48 -99.99 
1973 11  3.80 -99.99 -99.99 
1973 12 -2.66  -7.90  -5.28 
1974 04  9.46   -.56   4.44 
1974 05 15.90 -99.99 -99.99 
1974 07 24.76  14.90  19.83 
1974 08 24.79  15.84  20.31 
1976 06 26.62  12.43  19.52 
1977 06 21.96  10.72  16.34 
1977 07 25.61  14.02  19.81 
1977 09 17.71   7.79  12.75 
1977 10 12.29   2.04   7.16 
1977 11 99.99  -2.09 -99.99 
1978 08 25.47  13.80  19.63 
1978 09 18.37   6.71  12.54 
1978 10 11.90   2.68   7.29 
1978 11  5.77  -4.67    .54 
1978 12 -3.09 -12.52  -7.80 
1979 01 99.99 -14.07 -99.99 
1979 02 10.27 -19.45 -14.86 
1979 03  4.30  -4.62   -.15 
1979 04 11.06    .61   5.83 
1979 05 18.18   7.81  12.99 
1979 06 23.51  10.92  17.21 
1979 07 26.97  15.06  21.01 
1979 08 23.46  13.07  18.26 
1979 09 19.49   7.05  13.27 
1979 10 11.74   3.22   7.48 
1979 11  6.63  -1.42   2.60 
1979 12 -1.07  -9.51  -5.29 
1980 01 -5.27 -14.12  -9.69 
1980 02 -4.59 -16.00 -10.29 
1980 03  1.50  -9.82  -4.16 
1980 04 11.16    .38   5.77 
1980 05 18.93   4.60  11.76 
1980 06 21.88   9.22  15.55 
1980 07 25.84  13.50  19.67 
1980 08 25.81  13.52  19.66 
1980 09 19.12   7.13  13.12 
1980 10 10.00    .68   5.34 
1980 11  2.71  -5.09  -1.19 
1980 12 99.99 -19.75 -99.99 
1981 01 10.43 -22.88 -16.65 
1981 02   .82 -99.99 -99.99 
1981 03  3.79  -5.26   -.73 
1981 04 11.79    .47   6.13 
1981 05 17.58   7.08  12.33 
1981 06 22.66  12.26  17.45 
1981 07 25.60  14.97  20.28 
1981 08 23.81  14.15  18.98 
1981 09 17.77   9.78  13.77 
1981 10 10.14   1.45   5.80 
1981 11  4.94  -1.73   1.60 
1981 12  -.68  -6.66  -3.66 
1982 01 11.50 -21.71 -16.60 
1982 02 -5.21 -16.19 -10.70 
1982 03  1.53  -8.43  -3.45 
1982 04  9.26  -1.53   3.86 
1982 05 21.08   8.29  14.68 
1982 06 21.45  11.40  16.42 
1982 07 26.57  13.27  19.92 
1982 08 22.56  12.16  17.36 
1982 09 19.34   8.93  14.13 
1982 10 13.25   2.32   7.78 
1982 11  6.62   -.20   3.21 
1982 12   .58  -7.54  -3.48 
1983 01 -4.15 -12.35  -8.25 
1983 02 -2.27 -11.00  -6.63 
1983 03  3.10  -5.06   -.98 
1983 04  9.08    .85   4.96 
1983 05 14.66   5.94  10.30 
1983 06 24.74  12.02  18.38 
1983 07 26.95  15.53  21.24 
1983 08 25.88  15.18  20.53 
1983 09 22.67  10.92  16.79 
1983 10 12.65   3.08   7.86 
1983 11  4.16  -1.32   1.41 
1983 12 -5.32 -13.87  -9.59 
1984 01 -8.10 -18.86 -13.48 
1984 02  -.14  -8.45  -4.29 
1984 03 -2.14 -12.72  -7.43 
1984 04 11.93   1.27   6.60 
1984 05 16.12   6.21  11.16 
1984 06 24.42  11.48  17.95 
1984 07 25.81  14.84  20.32 
1984 08 26.52  15.25  20.88 
1984 09 19.09   7.60  13.34 
1984 10 14.48   3.70   9.09 
1984 11  6.17  -1.80   2.18 
1984 12  -.11  -9.29  -4.69 
1985 01 -9.12 -18.00 -13.56 
1985 02 -3.17 -12.94  -8.05 
1985 03  2.86  -7.19  -2.16 
1985 04  9.57  -1.12   4.22 
1985 05 19.79   5.59  12.69 
1985 06 21.63   9.96  15.79 
1985 07 25.77  13.10  19.43 
1985 08 24.84  11.98  18.41 
1985 09 21.98   9.18  15.58 
1985 10 13.61   1.72   7.66 
1985 11  4.26  -3.04    .61 
1985 12 -3.50 -13.52  -8.51 
1986 01 -5.48 -15.57 -10.52 
1986 02 -5.00 -15.74 -10.37 
1986 03  3.60  -7.47  -1.93 
1986 04 14.50   3.00   8.75 
1986 05 18.39   7.52  12.95 
1986 06 21.70   9.84  15.77 
1986 07 24.63  14.59  19.61 
1986 08 23.20  13.19  18.19 
1986 09 18.12   7.38  12.75 
1986 10 12.79   2.59   7.69 
1986 11  4.09  -3.90    . 9 
1986 12 -1.43 -11.13  -6.28 
1987 01 -5.79 -15.40 -10.59 
1987 02 99.99 -19.83 -99.99 
1987 04 15.00   2.83   8.91 
1987 05 18.24   5.66  11.95 
1987 06 23.74  11.45  17.59 
1987 07 27.17  15.11  21.14 
1987 08 24.73  11.10  17.91 
1987 09 19.43   8.55  13.99 
1987 10 11.79   1.30   6.54 
1987 11  4.23  -4.86   -.31 
1987 12 -1.12  -8.78  -4.94 
1988 02 -3.69 -15.85  -9.77 
1988 07 27.82  15.47  21.64 
1988 08 24.77  14.13  19.45 
1988 09 19.15   7.26  13.20 
1988 10 10.21   1.50   5.85 
1988 11  6.10  -1.12   2.49 
1988 12 -2.43 -13.42  -7.92 
1989 01 -2.84 -14.86  -8.84 
1989 02 -4.61 -16.04 -10.32 
1989 03   . 5 -11.55  -5.75 
1989 04  9.43  -1.29   4.07 
1989 05 19.20   7.30  13.25 
1989 06 23.68  12.07  17.87 
1989 07 27.68  13.09  20.38 
1989 08 24.40  12.67  18.53 
1989 09 20.20   9.14  14.67 
1989 10 13.45   2.90   8.17 
1989 11  2.63  -5.41  -1.38 
1989 12 11.28 -22.90 -17.09 
1990 01  -.13  -9.64  -4.89 
1990 02 -2.85 -13.80  -8.32 
1990 03  2.28  -7.83  -2.77 
1990 04 10.57   1.02   5.79 
1990 05 16.90   4.41  10.65 
1990 06 22.50  11.55  17.02 
1990 07 26.04  14.82  20.43 
1990 08 25.45  13.93  19.69 
1990 09 18.29   8.22  13.25 
1990 10 12.00   3.60   7.80 
1990 11  5.98  -2.31   1.83 
1990 12  -.97  -9.97  -5.47 
1991 01 -5.93 -99.99 -99.99 
