1979 06 24.62  13.72  19.17 
1979 07 28.01  17.04  22.53 
1979 08 25.00  15.32  20.16 
1979 09 99.99  11.42 -99.99 
1979 10 99.99   5.35 -99.99 
1979 11  8.93   -.24   4.35 
1979 12  3.90  -4.76   -.43 
1980 01  -.19  -8.80  -4.49 
1980 02 -1.91 -99.99 -99.99 
1980 03  3.15  -3.55   -.19 
1980 04 11.88 -99.99 -99.99 
1980 05 20.94   9.47  15.21 
1980 06 22.94  11.79  17.36 
1980 07 28.39  17.19  22.79 
1980 08 28.16  18.11  23.13 
1980 09 22.03  11.42  16.72 
1980 10 12.46   5.03   8.74 
1980 11  7.10    .-3   3.53 
1980 12  -.17  -8.55  -4.36 
1981 01 -3.34 -11.72  -7.53 
1981 02  3.00  -3.75   -.37 
1981 03  6.45  -2.71   1.86 
1981 04 14.09   3.52   8.80 
1981 06 25.27  14.43  19.85 
1981 09 19.93  10.70  15.31 
1981 10 12.44   4.03   8.23 
1981 11  9.14   1.16   5.15 
1981 12  2.35  -5.13  -1.38 
1982 01 -3.26 -99.99 -99.99 
1982 02  -.58  -9.31  -4.94 
1982 03 99.99  -4.05 -99.99 
1982 04 11.12    .58   5.85 
1982 05 19.82   7.47  13.64 
1982 06 21.02  11.04  16.03 
1982 07 28.31  15.95  22.13 
1982 08 24.63  13.08  18.85 
1982 09 20.86  10.24  15.55 
1982 10 99.99   4.96 -99.99 
1982 11  8.97   1.07   5.02 
1982 12  5.89  -2.55   1.67 
