1980 06 17.25   7.29  12.27 
1980 07 16.27   5.99  11.13 
1980 08 19.52   5.84  12.68 
1980 09 22.92   8.85  15.88 
1982 01 24.66  17.04  20.85 
1982 02 25.61  16.16  20.88 
1982 03 23.53  15.47  19.50 
1982 04 22.06  12.06  17.06 
1982 05 20.45   8.99  14.72 
1982 06 15.91   7.29  11.60 
1982 07 15.22   5.95  10.58 
1982 08 18.50   7.07  12.78 
1982 09 18.79   8.26  13.52 
1982 10 20.60   9.68  15.14 
1982 11 24.93  12.53  18.73 
1983 01 25.49  15.42  20.45 
1983 02 25.88  17.59  21.73 
1983 03 25.08  16.73  20.90 
1983 05 19.16  11.17  15.16 
1983 06 16.29 -99.99 -99.99 
1983 07 15.03   5.37  10.20 
1984 01 24.22 -99.99 -99.99 
1984 02 24.04 -99.99 -99.99 
1984 03 99.99  12.91 -99.99 
1984 04 21.40  12.31  16.85 
1984 05 18.32   9.42  13.87 
1984 06 17.49   6.96  12.22 
1984 07 99.99   7.21 -99.99 
1984 08 99.99   6.66 -99.99 
1984 09 17.25   7.63  12.44 
1984 10 19.51   9.87  14.69 
1984 11 22.28  13.73  18.00 
1985 02 22.98 -99.99 -99.99 
1985 03 24.52  15.26  19.89 
1985 04 21.09  13.50  17.29 
1985 05 18.43  10.35  14.39 
1985 06 16.74   7.01  11.87 
1985 07 15.88   6.25  11.06 
1985 08 16.21   5.88  11.04 
1985 09 17.96   9.30  13.63 
1985 10 19.85  11.67  15.76 
1985 11 21.22  13.55  17.38 
1985 12 25.50  14.76  20.13 
1986 01 24.12  15.48  19.79 
1986 02 23.84  15.40  19.61 
1986 03 99.99  15.38 -99.99 
1986 04 22.52  11.93  17.22 
1986 05 19.40   9.53  14.46 
1986 07 16.71   6.39  11.55 
1986 08 17.19   8.10  12.65 
1986 09 18.76   9.39  14.07 
