1955 10 23.66   7.60  15.63 
1955 11 16.59   1.11   8.85 
1955 12  8.53  -4.40   2.06 
1956 01  8.10  -3.32   2.39 
1956 02 99.99    .56 -99.99 
1956 03 16.37   1.96   9.17 
1956 04 21.72   5.74  13.73 
1957 04 24.66   8.06  16.36 
1957 07 33.21 -99.99 -99.99 
1978 08 32.75  19.92  26.33 
1978 09 29.39  15.06  22.22 
1978 10 22.32   7.03  14.67 
1978 11 17.87   5.46  11.67 
1979 01  9.35  -3.43   2.96 
1979 02  4.69  -6.83  -1.06 
1979 03 18.11    .87   9.49 
1979 04 99.99   7.34 -99.99 
1979 05 25.87  12.86  19.36 
1979 06 28.06  14.09  21.07 
1979 07 30.70  17.75  24.22 
1979 09 26.77  15.70  21.23 
1979 10 22.00   7.29  14.64 
1979 11 19.12   4.46  11.79 
1979 12 11.62  -1.10   5.26 
1980 01  9.02  -2.17   3.42 
1980 02  8.25  -4.62   1.81 
1980 03 99.99    .34 -99.99 
1980 06 28.59  15.34  21.96 
1980 07 32.22  19.41  25.81 
1980 08 33.16  19.29  26.22 
1980 09 29.19  16.23  22.71 
1981 02 10.17  -2.30   3.93 
1981 06 30.84 -99.99 -99.99 
1981 08 29.39  16.54  22.96 
1981 09 26.92  12.00  19.45 
1981 10 99.99   5.99 -99.99 
1982 01  5.72 -99.99 -99.99 
