1970 11 -3.20 -13.20  -8.20 
1970 12 -7.40 -20.80 -14.10 
1971 01 -6.20 -17.90 -12.04 
1971 02   .80 -14.90  -7.05 
1971 03  2.80 -12.50  -4.85 
1971 04 10.00  -5.10   2.45 
1971 05 16.20  -2.90   6.65 
1971 06 17.50   2.60  10.05 
1971 07 23.30   3.90  13.60 
1971 08 22.20   3.70  12.95 
1971 09 13.70   -.80   6.45 
1971 10  9.50  -4.60   2.45 
1971 11  2.40  -7.30  -2.45 
1971 12 -9.30 -22.00 -15.65 
1972 01 -9.70 -24.10 -16.90 
1972 02 -4.69 -17.40 -11.04 
1972 03  6.50  -9.20  -1.34 
1972 04  6.40  -6.30    . 4 
1972 05 17.60  -3.10   7.25 
1972 06 16.10   1.70   8.90 
1972 07 20.29   4.10  12.20 
1972 08 20.60   3.10  11.85 
1972 09 13.40  -1.00   6.20 
1972 10  9.80  -4.90   2.45 
1972 11  2.60  -6.10  -1.75 
1972 12 -5.70 -18.90 -12.29 
1973 01 -4.50 -17.00 -10.75 
1973 02  -.60 -16.79  -8.70 
1973 03  5.30  -8.70  -1.69 
1973 04  9.60  -5.20   2.20 
1973 05 15.00  -1.90   6.55 
1973 06 16.60    .70   8.65 
1973 07 20.20   1.90  11.05 
1973 08 19.20    .40   9.80 
1973 09 15.30    .10   7.70 
1973 10  7.60  -3.30   2.15 
1973 11 -6.60 -15.50 -11.05 
1973 12 -2.80 -13.50  -8.14 
1974 01 -9.00 -21.80 -15.40 
1974 02  2.80 -11.80  -4.50 
1974 03  3.60 -11.60  -4.00 
1974 04  9.80  -4.10   2.85 
1974 05 12.40  -2.60   4.89 
1974 06 18.20   -.20   9.00 
1974 07 18.29   2.40  10.35 
1974 08 22.30   1.90  12.10 
1974 09 19.40    .60  10.00 
1974 10 11.00  -1.50   4.75 
1974 11  2.09  -8.89  -3.40 
1974 12   .80  -9.80  -4.50 
1975 01 -4.50 -17.40 -10.95 
1975 02 -6.30 -21.10 -13.70 
1975 03  2.00 -13.20  -5.60 
1975 04  8.89  -6.40   1.24 
1975 05 14.70  -2.80   5.95 
1975 06 16.40   2.40   9.39 
1975 07 22.30   5.40  13.85 
1975 08 17.29   3.60  10.45 
1976 05 14.10  -1.70   6.20 
1976 07 18.40   4.30  11.35 
1976 09 18.40   1.10   9.75 
1976 11  4.30  -6.70  -1.19 
1976 12  1.60  -8.20  -3.30 
1977 01 -1.20 -14.50  -7.85 
1977 02  6.10 -99.99 -99.99 
