1971 12 -8.22 -19.50 -13.86 
1973 02 -5.06 -22.22 -13.64 
1973 03  1.20 -12.15  -5.47 
1973 04  8.42  -2.83   2.79 
1973 05 14.48    .65   7.56 
1973 06 17.40   6.24  11.82 
1973 08 17.07   6.73  11.90 
1973 09 12.90   1.80   7.35 
1973 10  2.57  -6.65  -2.04 
1973 11 -8.83 -21.60 -15.21 
1973 12 -6.32 -17.69 -12.00 
1974 01 14.07 -27.15 -20.61 
1974 02 -7.62 -18.52 -13.07 
1974 03   .65 -16.19  -7.77 
1974 04  9.18  -3.40   2.89 
1974 05 17.04   1.63   9.33 
1974 06 19.79   6.69  13.24 
1974 07 19.73   8.85  14.29 
1974 08 20.87   7.21  14.04 
1974 10  4.36  -3.57    .39 
1974 11 -3.71 -12.92  -8.31 
1974 12 -7.40 -16.43 -11.91 
1975 01 11.66 -22.61 -17.13 
1975 02 -7.68 -22.91 -15.29 
1975 03  -.52 -16.51  -8.51 
1975 04  5.59  -6.53   -.47 
1975 05 13.12    .18   6.65 
1975 06 16.62   5.88  11.25 
1975 07 20.65   8.68  14.66 
1975 09 13.10   5.13   9.11 
1975 10  5.11  -4.56    .27 
1975 11 -8.14 -18.75 -13.44 
1975 12 10.48 -21.08 -15.78 
1976 01 -9.47 -18.14 -13.80 
1976 02 -7.30 -21.44 -14.37 
1976 03  -.22 -13.20  -6.71 
1976 05 14.32   -.15   7.08 
1976 06 19.79   6.59  13.19 
1976 07 21.48   8.89  15.18 
1976 08 20.00   7.82  13.91 
1976 09 13.92   2.82   8.37 
1976 10  3.76  -5.91  -1.07 
1976 11  1.49  -7.00  -2.75 
1976 12 -3.88 -12.28  -8.08 
1977 01  1.24  -5.72  -2.23 
1977 02  2.09  -6.65  -2.27 
1977 03  -.84 -14.54  -7.69 
1977 04  5.76  -4.80    .48 
1977 05 13.51    .58   7.05 
1977 06 20.29   7.46  13.87 
1977 07 23.10   9.29  16.19 
1977 08 20.96   9.39  15.17 
