1971 12  2.50  -9.04  -3.27 
1972 01   .81 -15.57  -7.37 
1972 02  5.88  -5.74    . 7 
1972 03 11.96  -3.51   4.22 
1972 04 14.44  -1.29   6.57 
1972 05 18.26   4.12  11.19 
1972 06 25.34   9.43  17.39 
1972 08 27.42   9.26  18.34 
1972 09 23.04   7.24  15.14 
1972 10 99.99   -.58 -99.99 
1972 12   .28 -10.87  -5.29 
1973 02  5.42  -9.28  -1.92 
1973 03  9.08  -4.10   2.49 
1973 04  7.70  -3.06   2.32 
1973 05 17.04   4.42  10.73 
1973 06 25.70  10.27  17.98 
1973 07 26.72   9.88  18.29 
1973 08 29.37  12.58  20.97 
1973 10 15.91   4.55  10.22 
1973 11  4.32  -5.28   -.48 
1973 12  2.77 -99.99 -99.99 
1974 02  1.96 -99.99 -99.99 
1974 03  7.79 -99.99 -99.99 
1974 04 10.93   3.11   7.02 
1974 05 14.06   4.65   9.35 
1975 01  1.80 -12.74  -5.47 
