1970 12   .35  -5.34  -2.49 
1971 01   .23  -5.34  -2.55 
1971 02  3.89  -2.21    .84 
1971 03  6.02  -2.01   2.00 
1971 04 14.65   2.58   8.61 
1971 05 19.73   7.87  13.79 
1971 06 20.92   9.14  15.03 
1971 07 27.70  12.63  20.16 
1971 08 30.15  15.27  22.71 
1971 09 18.29   8.14  13.22 
1971 10 12.56   3.10   7.83 
1971 11  5.69    .35   3.02 
1971 12 -2.68  -8.58  -5.63 
1972 01 -2.79  -9.59  -6.19 
1972 02  2.01  -4.66  -1.32 
1972 03  9.43    .27   4.85 
1972 04 11.46    .58   6.02 
1972 05 19.54   7.47  13.50 
1972 06 21.21  10.51  15.86 
1972 07 25.21  11.50  18.35 
1972 08 27.21  12.92  20.06 
1972 09 17.87   6.70  12.28 
1972 10 11.40   1.50   6.45 
1972 11  5.66    .80   3.23 
1972 12  -.72  -6.07  -3.39 
1973 01 -1.02  -6.74  -3.88 
1973 02  3.55  -3.45    . 4 
1973 03  9.84    .47   5.15 
1973 04 14.95   2.35   8.65 
1973 05 19.76   6.60  13.18 
1973 06 23.32   9.55  16.43 
1973 07 28.17  12.79  20.48 
1973 08 26.72  12.75  19.73 
1973 09 21.71   9.35  15.53 
1973 10 12.32   4.56   8.43 
1973 11  3.51  -2.25    .63 
1973 12  3.34  -1.11   1.11 
1974 01   .25  -6.00  -2.87 
1974 02  5.77   -.83   2.47 
1974 03  7.99   -.23   3.88 
1974 04 14.32   3.70   9.01 
1974 05 17.04   5.25  11.15 
1974 06 25.22  10.28  17.75 
1974 07 25.30  11.52  18.41 
1974 08 27.26  12.98  20.11 
1974 09 23.02   8.93  15.97 
1974 10 15.12   3.60   9.35 
1974 11  6.20    .46   3.33 
1974 12  3.03  -1.93    .55 
1975 01  -.61  -6.55  -3.58 
1975 02 -1.29  -8.35  -4.82 
1975 03  5.88  -2.78   1.55 
1975 04 12.78    .64   6.71 
1975 05 19.17   5.84  12.50 
1975 06 21.74   9.60  15.67 
1975 07 28.46  14.76  21.61 
1975 08 22.83  11.49  17.16 
1975 09 22.13   8.00  15.06 
1975 10 12.91   4.54   8.72 
1975 11  5.71   -.61   2.55 
1975 12  2.16  -3.74   -.79 
1976 01  2.03  -4.44  -1.20 
1976 02  3.52  -3.17    .17 
1976 03  6.31  -2.51   1.90 
1976 04 14.08   1.78   7.93 
1976 05 18.12   5.75  11.94 
