1971 01 33.20 -38.30 -35.75 
1971 02 24.30 -30.70 -27.50 
1971 03 15.80 -27.10 -21.45 
1971 04 -2.90 -15.20  -9.05 
1971 05 13.20   -.20   6.50 
1971 06 23.20   6.60  14.90 
1971 07 23.50  10.90  17.20 
1971 08 17.29   6.20  11.75 
1971 09 10.60   2.09   6.35 
1971 10  -.30  -8.60  -4.45 
1971 11 17.10 -25.80 -21.45 
1971 12 22.60 -33.09 -27.84 
1972 01 21.90 -31.90 -26.90 
1972 02 24.70 -34.90 -29.80 
1972 03 15.60 -27.10 -21.35 
1972 04 -3.80 -18.40 -11.10 
1972 05  9.20  -2.40   3.40 
1972 06 22.20   9.70  15.95 
1972 07 23.10  10.40  16.75 
1972 08 22.30  10.30  16.29 
1972 09  7.20  -1.20   3.00 
1972 10  -.20  -8.20  -4.19 
1972 11 15.60 -23.80 -19.70 
1972 12 18.10 -27.70 -22.90 
1973 01 23.10 -32.50 -27.80 
