1977 06 25.41  14.46  19.93 
1977 07 29.69  18.75  24.22 
1977 08 27.90  18.24  23.07 
1977 09 23.09  14.67  18.88 
1977 10 16.20   7.67  11.93 
1977 11 11.02   5.12   8.07 
1977 12  4.80  -2.27   1.26 
1978 02  -.23  -7.70  -3.96 
1978 03  6.79  -1.75   2.52 
1978 04 15.19   4.05   9.62 
1978 05 19.78   9.35  14.56 
1978 06 26.61  14.56  20.58 
1978 07 28.15  17.59  22.87 
1978 08 28.02  18.93  23.47 
1978 09 23.13  12.81  17.96 
1978 10 18.20   8.12  13.16 
1978 11 11.76   4.55   8.15 
1978 12  6.61  -1.07   2.77 
1979 01  3.44  -4.46   -.51 
1979 02 -1.46  -9.09  -5.27 
1979 03 10.94    .78   5.85 
1979 04 15.23   5.30  10.26 
1979 05 21.18  11.22  16.20 
1979 06 24.86  13.89  19.37 
1979 07 28.84  18.24  23.54 
1979 08 27.86  18.02  22.94 
1979 09 23.83  14.76  19.29 
1979 10 16.61   8.32  12.46 
1979 11 13.85   5.93   9.89 
1979 12  6.70    .20   3.44 
1980 01  3.32  -2.88    .21 
1980 02  2.48  -5.00  -1.26 
1980 03  7.96    . 2   3.99 
1980 04 15.61   5.74  10.67 
1980 05 22.88  10.85  16.86 
1980 06 25.66  13.86  19.76 
1980 08 29.85  19.04  24.45 
1980 09 25.76  15.56  20.66 
1980 10 16.64   8.66  12.65 
1980 11  9.99   2.56   6.27 
1980 12  4.32  -3.55    .38 
1981 01  -.32  -7.44  -3.88 
1981 02  7.32  -1.31   3.00 
1981 03  8.74   -.21   4.26 
1981 04 17.03   6.30  11.66 
1981 05 22.45  10.90  16.67 
1981 06 26.69  16.17  21.43 
1981 07 29.63  19.64  24.63 
1981 08 28.12  18.04  23.08 
1981 09 22.38  14.61  18.49 
1981 10 16.16   8.41  12.28 
1981 11 11.01   4.69   7.85 
1981 12  4.19  -1.25   1.47 
1982 01   .38  -7.84  -3.73 
1982 02  4.10  -2.67    .71 
1982 03  8.68    .18   4.43 
1982 04 14.64   4.28   9.46 
1982 05 22.04  11.57  16.80 
1982 06 23.47  14.49  18.98 
1982 07 29.44  18.48  23.96 
1982 08 26.96  16.90  21.93 
1982 09 24.02  14.80  19.41 
1982 10 18.57   9.30  13.93 
1982 11 12.78   5.33   9.05 
1982 12  8.68   2.15   5.42 
1983 01  4.21  -1.85   1.18 
1983 02  4.46  -2.84    .81 
1983 03  9.05   1.73   5.39 
1983 04 14.73   5.35  10.04 
1983 05 19.23   9.59  14.41 
1983 06 27.86  15.76  21.81 
1983 07 30.53  19.02  24.77 
1983 08 29.05  18.79  23.92 
1983 09 26.52  15.87  21.19 
1983 10 17.66   9.85  13.76 
1983 11 11.95   4.90   8.42 
1983 12  5.73  -1.98   1.87 
1984 01  1.58 -99.99 -99.99 
1984 07 26.82  17.52  22.17 
1984 08 28.02  18.51  23.26 
1984 09 23.27  12.38  17.82 
1984 10 18.99 -99.99 -99.99 
1985 01  1.31  -6.75  -2.72 
1985 02  4.17  -3.40    .38 
1985 03 11.21 -99.99 -99.99 
1985 04 16.58   4.61  10.59 
1985 05 22.78  10.08  16.43 
1985 06 23.92  12.98  18.45 
1985 07 28.34  17.10  22.72 
1985 08 27.22  17.75  22.48 
1985 09 24.99  15.34  20.16 
1985 10 19.33   9.68  14.50 
1985 12  4.66  -2.44   1.10 
1986 01 99.99  -4.76 -99.99 
1986 02  2.00  -4.44  -1.22 
1986 03  9.75    .16   4.95 
1986 05 24.05  11.42  17.73 
1986 06 26.66  15.11  20.88 
1986 07 28.63  18.32  23.47 
1986 08 26.66  17.65  22.15 
1986 09 23.22  14.18  18.70 
1986 10 18.34   9.70  14.02 
1986 11 11.65   2.92   7.28 
1987 01  3.60  -3.79    .-9 
1987 02 99.99  -5.05 -99.99 
1987 03 11.35   1.13   6.24 
1987 04 15.72   5.78  10.75 
1987 05 22.56   9.97  16.27 
1987 06 27.70  16.54  22.12 
1987 07 29.45  19.67  24.56 
1987 08 27.05  17.62  22.33 
1987 09 23.38  14.79  19.08 
1987 11 99.99   4.46 -99.99 
1987 12 99.99    .-5 -99.99 
1988 03 99.99    .18 -99.99 
1988 04 14.06   5.45   9.75 
1988 05 21.45  10.32  15.88 
1988 06 26.92  15.63  21.27 
1989 05 21.79  10.92  16.35 
1989 07 27.63  18.48  23.05 
1989 08 26.90  18.28  22.59 
1989 09 24.47  15.61  20.03 
