1971 03  -.72  -7.71  -4.21 
1971 04  9.68  -1.47   4.10 
1971 05 17.18   5.20  11.19 
1971 06 99.99  12.12 -99.99 
1971 08 23.74  12.63  18.18 
1971 09 21.37  12.00  16.68 
1971 10 16.09   7.98  12.03 
1971 12  2.27  -4.81  -1.27 
1972 02 -4.56 -13.50  -9.03 
1972 03 -1.63  -8.55  -5.09 
1972 05 17.76   8.49  13.12 
1972 06 19.04  10.63  14.83 
1972 07 99.99  14.27 -99.99 
1972 08 99.99  13.47 -99.99 
1972 09 20.02  10.24  15.13 
1972 10 10.47   1.85   6.16 
1972 11  2.13  -2.28    .-7 
1973 03  6.14 -99.99 -99.99 
1973 04 10.22 -99.99 -99.99 
1973 05 14.41   4.83   9.62 
1973 06 22.85  13.69  18.27 
1973 08 25.91 -99.99 -99.99 
1973 09 99.99   9.06 -99.99 
1973 10 99.99   5.85 -99.99 
1973 11 99.99    . 9 -99.99 
1973 12 -1.82  -8.26  -5.04 
1974 02 -4.12 -11.99  -8.05 
1974 03  1.50  -4.91  -1.70 
1974 04 11.38   2.04   6.71 
1974 05 14.08   5.27   9.67 
1974 06 99.99  11.49 -99.99 
1974 07 26.01  14.31  20.16 
1974 08 25.79  13.72  19.75 
1974 09 19.09   7.97  13.53 
1974 10 12.81   1.62   7.21 
1974 11  5.93   -.21   2.86 
1974 12   .55  -4.92  -2.18 
1975 01  -.13  -7.79  -3.96 
1975 02 -1.93  -7.52  -4.72 
1975 03  -.19  -6.65  -3.42 
1975 04  6.81  -1.54   2.63 
1975 05 21.64   9.54  15.59 
1975 09 17.62   7.99  12.81 
1975 10 15.01   4.21   9.61 
1975 11 11.03   1.77   6.39 
1975 12  -.98  -8.64  -4.81 
1976 01 -5.20 -14.89 -10.04 
1976 02  1.88  -7.70  -2.91 
1976 03  4.61  -4.26    .17 
1976 04 12.87   2.02   7.44 
1976 05 15.19   5.42  10.30 
1976 06 24.53  13.41  18.97 
1976 07 24.45  14.25  19.35 
1976 08 23.64  12.56  18.10 
1976 09 99.99   8.52 -99.99 
1976 10 10.42   2.04   6.23 
1976 11  2.88  -4.67   -.89 
1976 12 -3.58 -13.12  -8.35 
1977 01 -8.39 -16.64 -12.51 
1977 02 -3.22 -10.97  -7.09 
1977 03  5.98  -3.03   1.47 
1977 04 13.71   1.99   7.85 
1977 06 22.13  11.03  16.58 
1977 07 26.18  15.14  20.66 
1977 08 23.78  13.17  18.47 
1977 09 19.29  11.31  15.30 
1977 10 12.58   3.48   8.03 
1977 11  6.63    .42   3.52 
1977 12 -1.76  -7.55  -4.65 
1978 01 -5.45 -12.24  -8.84 
1978 02 -6.04 -16.29 -11.17 
1978 03   .-8  -9.50  -4.79 
1978 04  8.70   -.37   4.16 
1978 05 18.24   7.89  13.06 
1978 06 23.50  11.18  17.34 
1978 07 26.00  13.85  19.92 
1978 08 25.77  13.81  19.79 
1978 09 20.40   9.62  15.01 
1978 10 12.90   3.55   8.22 
1978 11  7.43  -1.48   2.97 
1978 12   .15  -6.64  -3.24 
1979 01 -5.28 -11.33  -8.30 
1979 02 -7.30 -16.25 -11.77 
1979 03  5.66  -3.79    .93 
1979 04  9.42   1.21   5.31 
1979 05 16.98   6.17  11.57 
1979 06 22.98  11.72  17.35 
1979 07 26.15  14.54  20.34 
1979 08 24.06  13.45  18.75 
1979 09 20.08   9.39  14.74 
1979 10 11.81   5.08   8.44 
1979 11  7.42   -.32   3.55 
1979 12  1.16  -4.48  -1.66 
1980 01 -1.69  -8.78  -5.23 
1980 02 -4.05 -12.29  -8.17 
1980 03   .89  -6.53  -2.82 
1980 04 10.95   1.95   6.45 
1980 05 19.29   8.76  14.03 
1980 06 20.73   9.50  15.11 
1980 07 25.81  14.73  20.27 
1980 08 25.84  15.92  20.88 
1980 09 20.82   9.27  15.04 
1980 10 10.06   2.69   6.37 
1980 11  4.98  -1.72   1.63 
1980 12 -2.00 -11.53  -6.76 
1981 01 -6.24 -15.02 -10.63 
1981 02   .88  -7.11  -3.11 
1981 03  4.37  -4.10    .13 
1981 04 11.60   2.30   6.95 
1981 05 17.53   6.50  12.01 
1981 06 23.16  11.88  17.52 
1981 07 26.27  15.11  20.69 
1981 08 24.43  14.56  19.49 
1981 09 18.50  10.85  14.67 
1981 10 10.77   2.81   6.79 
1981 11  7.30   -.45   3.42 
1981 12  -.25  -6.13  -3.19 
1982 01 -5.11 -14.15  -9.63 
1982 02 -3.79 -12.34  -8.06 
1982 03  1.69  -6.58  -2.44 
1982 04  9.68   -.90   4.39 
1982 05 20.46   9.87  15.17 
1982 06 20.77  11.38  16.07 
1982 07 26.37  15.01  20.69 
1982 08 22.90  12.29  17.59 
1982 09 19.19   9.47  14.33 
1982 10 15.36   4.13   9.74 
1982 11  7.26    .45   3.85 
1982 12  4.10  -2.84    .63 
1983 01 -1.39  -7.48  -4.43 
1983 02   .34  -6.55  -3.10 
1983 06 24.66  11.95  18.30 
1983 07 27.98  16.23  22.10 
1983 08 25.89  15.77  20.83 
1983 09 22.47  10.31  16.39 
1983 10 13.52   4.58   9.05 
1983 11  6.98    .-3   3.47 
1983 12 -3.06  -9.76  -6.41 
1984 01 -4.77 -14.58  -9.67 
1984 02  2.09  -5.79  -1.84 
1984 03 -1.08  -9.33  -5.20 
1984 04 11.45   2.75   7.10 
1984 05 15.42   5.85  10.63 
1984 06 24.40  12.45  18.42 
1984 07 25.34  13.77  19.55 
1984 08 26.29  15.43  20.86 
1984 09 19.12   8.89  14.01 
1984 10 15.61   5.75  10.68 
1984 11  6.93  -1.58   2.67 
1984 12  3.21  -4.06   -.42 
1985 01 -4.48 -12.19  -8.33 
1985 02 -2.78 -11.72  -7.25 
1985 04 14.17   2.36   8.27 
1985 05 19.87   7.67  13.77 
1985 06 21.80   9.76  15.78 
1985 07 25.38  14.10  19.74 
1985 08 25.15  13.47  19.31 
1985 09 22.10  10.71  16.40 
1985 10 14.16   4.75   9.45 
1985 11  5.37    .45   2.91 
1985 12 -2.30  -9.32  -5.81 
1986 01 -2.17 -99.99 -99.99 
1986 02 -3.21 -11.31  -7.26 
1986 03  5.17  -4.83    .17 
1986 04 13.22   2.93   8.07 
1986 05 19.20   9.35  14.28 
1986 06 21.82  10.38  16.10 
1986 07 25.58  15.56  20.57 
1986 08 23.47  13.23  18.34 
1986 09 19.20  10.28  14.74 
1986 10 13.44   4.21   8.83 
1986 11  4.52  -2.81    .85 
1986 12   .22  -4.42  -2.10 
1987 01 -2.08  -9.39  -5.73 
1987 02 -1.09 -11.17  -6.13 
1987 03  6.23  -3.77   1.23 
1987 04 13.83   4.17   9.00 
1987 05 21.26   8.30  14.78 
1987 06 25.03  12.75  18.89 
1987 07 27.43  16.75  22.09 
1987 08 24.05  14.20  19.12 
1987 09 20.37  10.77  15.57 
1987 10 11.82   1.97   6.89 
1987 11  7.08   -.68   3.20 
1987 12  2.00  -3.85   -.92 
1988 01 -1.03 -11.15  -6.08 
1988 02 -2.50 -12.79  -7.64 
1988 04 11.04   1.04   6.04 
1988 09 20.31   8.68  14.49 
1988 10 10.63   2.67   6.65 
1988 11  7.81    .52   4.17 
1988 12   .52  -7.75  -3.61 
1989 02 -3.10 -10.98  -7.04 
1989 03  2.53  -7.68  -2.57 
1989 09 21.06   9.26  15.16 
1989 11  5.46  -2.74   1.36 
1989 12 -5.67 -15.05 -10.36 
1990 01  1.66  -5.40  -1.87 
1990 02  -.33  -9.39  -4.86 
1990 03  5.09  -3.93    .58 
1990 04 13.72   2.66   8.19 
1990 05 17.60   5.38  11.49 
1990 10 14.56   4.21   9.38 
1990 11  8.37   -.95   3.71 
1990 12  2.69  -5.19  -1.25 
1991 01 -2.43 -10.60  -6.51 
1991 02   .79  -7.46  -3.33 
1991 03  5.20  -3.82    .68 
1991 04 13.16   3.43   8.29 
1991 05 22.40  10.40  16.40 
1991 07 26.57  14.74  20.65 
1991 10 99.99   4.29 -99.99 
1991 11 99.99  -2.79 -99.99 
1991 12 99.99  -7.07 -99.99 
1992 01 99.99  -8.29 -99.99 
1992 02 99.99  -8.34 -99.99 
1992 03  3.30  -6.16  -1.43 
1992 04  9.33    .34   4.83 
1992 05 18.33   5.69  12.01 
1992 06 21.66   9.39  15.53 
1992 07 23.13  13.12  18.12 
1992 08 22.71  12.27  17.49 
1992 10 11.96   1.21   6.58 
1992 11  5.50   -.34   2.58 
1992 12  1.29  -5.55  -2.13 
1993 01  -.78  -8.57  -4.67 
1993 02 -3.75 -16.00  -9.87 
1993 03  2.11  -9.55  -3.71 
1993 04 11.98    .79   6.38 
1993 06 22.21  12.17  17.18 
1993 07 26.12  15.57  20.84 
1993 08 26.57  14.45  20.51 
1993 10 99.99   1.15 -99.99 
1993 11  6.29  -1.60   2.34 
1993 12   .75  -7.67  -3.46 
1994 01 -7.60 -19.70 -13.65 
1994 02 -3.57 -16.48 -10.02 
1994 03  3.54  -7.66  -2.06 
1994 04 99.99   -.50 -99.99 
