1980 12 10.80 -18.60 -14.70 
1981 01 -2.40  -8.60  -5.50 
1981 02 -4.10 -11.20  -7.64 
1981 03  -.40  -8.89  -4.64 
1981 04 -1.00  -8.89  -4.94 
1981 05  8.00    . 0   4.00 
1981 06  8.80    .90   4.85 
1981 07 16.20   5.70  10.95 
1981 08 16.79   5.40  11.10 
1981 09  8.00    .80   4.40 
1981 10 99.99  -3.70 -99.99 
1981 11 -3.30  -8.60  -5.95 
1981 12 10.20 -16.40 -13.29 
1982 01 15.30 -23.30 -19.29 
1982 02 10.10 -17.50 -13.80 
1982 03 -4.60 -12.60  -8.60 
1982 04 -1.80  -9.39  -5.60 
1982 05  4.30  -2.30   1.00 
1982 06 15.20   4.60   9.89 
1982 07 16.00   7.10  11.55 
1982 08 11.90   3.90   7.89 
1982 09 10.40   2.50   6.45 
1982 10   .70  -4.60  -1.95 
1982 11 -7.20 -13.10 -10.14 
1982 12 -6.50 -12.00  -9.25 
1983 01 -6.00 -12.30  -9.14 
1983 02 -4.90 -11.30  -8.10 
1983 03 -3.50 -11.60  -7.55 
1983 04  2.70  -5.40  -1.35 
1983 05  8.70   -.10   4.29 
1983 06 12.10   3.60   7.85 
1983 07 12.70   4.69   8.70 
1983 08 11.20   3.40   7.30 
1983 09  5.10   -.80   2.14 
1983 10   .10  -4.40  -2.15 
