1974 11  -3.14  -9.35  -6.25 
1974 12  -5.16  -9.81  -7.48 
1975 01  -7.85 -12.85 -10.35 
1975 02  -6.01 -12.44  -9.22 
1975 03  -3.90  -9.68  -6.79 
1975 04   1.89  -6.70  -2.40 
1975 06  10.04   1.54   5.79 
1975 07  19.43   8.53  13.98 
1975 08  13.10   5.00   9.05 
1975 09  14.22   3.07   8.64 
1975 10   2.94  -3.19   -.12 
1975 11  -4.19 -10.63  -7.41 
1975 12  -4.81  -9.78  -7.29 
1976 01  -4.57  -9.84  -7.20 
1976 02  -4.48  -9.67  -7.07 
1976 03  -3.58 -10.39  -6.98 
1976 04   3.55  -3.87   -.15 
1976 05   8.25  -1.16   3.54 
1976 06   9.87   1.41   5.64 
1976 07  16.84   6.47  11.65 
1976 08  14.39   5.91  10.14 
1976 09  14.66   4.39   9.52 
1976 10   4.69  -1.35   1.67 
1976 11   0.12  -6.82  -3.35 
1976 12  -3.52  -9.46  -6.49 
1977 01  -5.72 -12.60  -9.16 
1977 02   -.83  -8.35  -4.59 
1977 03  -2.65  -9.64  -6.14 
1977 04   6.75  -3.82   1.46 
1977 05   5.37  -1.42   1.97 
1977 06  15.20   5.23  10.21 
1977 07  15.89   6.13  11.01 
1977 08  18.20   7.66  12.93 
1977 09   8.74   2.05   5.39 
1977 10   4.76  -2.36   1.19 
1977 11  -4.85  -9.70  -7.27 
1977 12  -6.53 -11.84  -9.18 
1978 01  -5.68 -10.42  -8.05 
1978 02  -3.59  -8.57  -6.08 
1978 03   0.97  -5.95  -2.48 
1978 04   3.50  -4.10   -.29 
1978 05   5.87  -1.74   2.06 
1978 06  13.07   3.08   8.07 
1978 07  17.52   6.71  12.11 
1978 09   8.95   2.18   5.56 
1978 10   6.34  -2.02   2.16 
1978 11  -5.05 -10.52  -7.78 
1978 12 -10.02 -15.18 -12.60 
1979 01 -11.42 -17.27 -14.34 
1979 02  -5.20 -10.10  -7.65 
1979 03   1.03  -7.27  -3.12 
1979 04   3.42  -5.18   -.87 
1979 05   8.84   -.23   4.30 
1979 06 -99.99   3.39 -99.99 
1979 07  18.73   7.02  12.87 
1979 08  18.19   7.53  12.86 
1979 09  14.18   4.28   9.23 
1979 10   7.30   0.24   3.77 
1979 11  -3.70  -8.70  -6.20 
1979 12  -2.42  -7.48  -4.94 
1980 01  -9.35 -15.18 -12.26 
1980 02  -3.28  -8.34  -5.81 
1980 03  -2.02  -8.77  -5.39 
1980 04   6.63  -2.00   2.31 
1980 05   9.27   1.26   5.26 
1980 06  11.38   3.18   7.28 
1980 07  17.23   6.27  11.75 
1980 08  13.19   4.53   8.85 
1980 09  11.18   3.00   7.09 
1980 10   5.95   -.98   2.48 
1980 11  -2.25  -6.75  -4.50 
1980 12  -2.08  -6.61  -4.34 
1981 01  -2.13  -6.84  -4.48 
1981 02  -3.59  -9.32  -6.45 
1981 03   1.97  -5.90  -1.96 
1981 05   7.69   0.31   4.00 
1981 06   8.22   0.88   4.55 
1981 07  14.20   5.21   9.70 
1981 08  19.81   8.35  14.08 
1981 11   0.20  -4.35  -2.07 
1981 12  -6.44 -11.72  -9.08 
1982 01  -7.48 -12.15  -9.81 
1982 02  -6.18 -11.04  -8.60 
1982 03  -1.60  -8.16  -4.88 
1982 04   2.02  -6.89  -2.43 
1982 05   7.42   -.61   3.40 
1982 07  14.59   4.44   9.52 
1982 08  16.98   5.72  11.35 
1982 09  11.54   2.71   7.12 
1982 10   3.74  -1.89   0.92 
1982 11  -4.46  -9.20  -6.83 
1982 12  -6.23 -10.47  -8.35 
1983 01  -2.74  -6.30  -4.52 
1983 02  -2.50  -6.82  -4.66 
1983 03   0.40  -4.81  -2.20 
1983 10   5.09  -2.39   1.35 
1983 11  -2.52  -4.87  -3.69 
1983 12 -11.11 -16.76 -13.93 
1984 01  -5.13  -9.63  -7.38 
1984 02  -3.29  -8.16  -5.72 
1984 03   0.32  -5.27  -2.47 
1984 04   3.16  -4.00   -.41 
1984 07  19.41   7.09  13.25 
1984 08  18.19   6.10  12.14 
1984 09   9.33   -.10   4.61 
1984 11  -3.08  -7.80  -5.44 
1984 12  -8.60 -13.82 -11.21 
1985 01  -6.31 -11.66  -8.98 
1985 02  -7.09 -12.54  -9.81 
1985 03  -1.03  -8.72  -4.87 
1985 04 -99.99  -2.80 -99.99 
1985 11 -11.03 -15.71 -13.37 
1985 12  -5.56 -11.08  -8.32 
1986 01  -3.18  -7.56  -5.37 
1986 02  -4.29 -10.57  -7.43 
1986 03   2.68  -4.35   -.83 
1986 04   3.04  -4.25   -.60 
1986 11  -3.53  -8.07  -5.80 
1986 12  -5.84 -10.02  -7.93 
1987 01  -6.15 -10.85  -8.50 
1987 02  -2.54  -7.77  -5.15 
1987 03   0.68  -5.55  -2.43 
1987 04   5.56  -2.07   1.74 
1987 11   -.50  -4.26  -2.38 
1987 12  -6.45 -10.53  -8.49 
1988 01  -6.97 -11.39  -9.18 
1988 02  -2.41  -8.91  -5.66 
1988 03   -.15  -6.65  -3.40 
1988 04   6.83  -1.83   2.50 
1988 11  -2.97  -6.42  -4.69 
1988 12  -5.42  -9.77  -7.59 
1989 01  -5.82 -10.63  -8.22 
1989 02  -9.46 -15.43 -12.44 
1989 03  -2.31  -8.21  -5.26 
1989 04   5.18  -2.11   1.53 
1989 11  -2.18  -5.97  -4.07 
1989 12  -3.95  -7.97  -5.96 
