1971 05 -8.30 -15.10 -11.70 
1971 06  4.50  -1.10   1.70 
1971 07 10.10   3.10   6.60 
1971 08  3.20   -.90   1.15 
1971 09 -2.20  -7.40  -4.80 
1971 10 12.20 -19.60 -15.90 
1972 05 -9.70 -17.29 -13.50 
1972 06   .10  -4.90  -2.40 
1972 07  6.30    .80   3.55 
1973 05 -7.80 -14.70 -11.25 
1973 06  4.00   -.90   1.55 
1973 07  8.10   2.60   5.35 
1973 08  5.70   1.10   3.40 
1974 05 -9.39 -16.70 -13.05 
1974 06 -1.80  -7.90  -4.85 
1974 07  6.40   1.30   3.85 
1974 08  5.40   -.10   2.65 
1975 06  4.80    .60   2.70 
1975 07  5.60    .50   3.05 
1975 08  4.19  -1.40   1.39 
1976 04 17.70 -26.30 -22.00 
1976 05 -9.80 -19.00 -14.40 
1976 06  1.10  -3.90  -1.40 
1976 07  6.80   1.30   4.05 
1976 08  3.30  -1.80    .75 
1976 09 -2.60  -7.60  -5.10 
1977 06  4.30  -1.20   1.55 
1977 07 10.60   3.80   7.20 
1977 08  6.80    .10   3.45 
1977 09 -3.10  -8.89  -6.00 
1978 06   . 0  -4.80  -2.40 
1978 07  8.30   2.20   5.25 
1978 08  2.90  -1.10    .90 
1979 06  -.50  -5.70  -3.10 
1979 07  6.80   1.00   3.90 
1979 08  2.40  -2.40    . 0 
