1972 09 -2.09  -6.50  -4.30 
1972 10 -7.10 -13.30 -10.20 
1972 11 17.40 -23.80 -20.59 
1972 12 24.20 -32.40 -28.30 
1973 01 20.29 -29.80 -25.05 
1973 02 26.00 -33.90 -29.95 
1973 03 22.90 -30.00 -26.45 
1973 04 14.40 -23.00 -18.70 
1973 05 -5.00 -12.60  -8.80 
1973 06  3.90  -1.80   1.05 
1973 07  6.60   1.40   4.00 
1973 08  5.80    .90   3.35 
1973 09  -.70  -5.40  -3.05 
1973 10 -7.10 -12.30  -9.70 
1973 11 13.30 -20.29 -16.79 
1973 12 16.70 -24.40 -20.55 
1974 01 23.80 -31.70 -27.75 
1974 02 21.10 -28.90 -25.00 
1974 03 20.29 -28.10 -24.20 
1974 04 15.90 -25.00 -20.45 
1974 05 -5.90 -13.10  -9.50 
1974 06   .90  -5.00  -2.05 
1974 07  6.90    .80   3.85 
1974 08  6.10   1.10   3.60 
