1973 01 14.20 -21.80 -18.00 
1973 02 12.40 -24.10 -18.25 
1973 10  6.60   -.70   2.95 
1973 11   .50  -4.69  -2.09 
1973 12 -2.70 -11.40  -7.05 
1974 01 18.29 -25.70 -22.00 
1974 02 -8.00 -17.29 -12.65 
1974 03 -6.60 -17.20 -11.90 
1974 04  -.30  -9.39  -4.85 
1974 05  3.90  -1.30   1.30 
1974 06 14.30   2.80   8.55 
1974 07 16.00   6.60  11.30 
1974 08 17.50   7.00  12.25 
1974 09 13.50   3.30   8.39 
1974 10  4.10  -2.70    .69 
1974 11   .20  -6.30  -3.05 
1974 12 -7.10 -13.90 -10.50 
1975 01 18.50 -24.90 -21.70 
1975 02 12.90 -21.10 -17.00 
1975 03 -3.90 -12.90  -8.39 
1975 04   .70  -7.30  -3.30 
1975 05  6.70   -.60   3.05 
1975 06 15.20   5.30  10.25 
1975 07 18.10   7.10  12.60 
1975 08 15.80   7.70  11.75 
1975 09 12.60   3.30   7.95 
1975 10  5.70   -.90   2.39 
1975 11  1.00  -6.20  -2.60 
