1970 10  7.80   1.04   4.42 
1970 11  -.57  -6.66  -3.61 
1970 12  -.77  -8.22  -4.50 
1971 01 -1.86  -8.50  -5.18 
1971 02  -.33  -8.89  -4.61 
1971 03  -.22 -10.07  -5.14 
1971 04  5.97  -3.75   1.10 
1971 05 16.09   1.85   8.97 
1971 06 19.20   5.83  12.52 
1971 07 21.31   7.93  14.62 
1971 08 19.01   6.63  12.82 
1971 09 13.49   3.02   8.25 
1971 10  8.14   -.73   3.70 
1971 11  -.37  -9.10  -4.73 
1971 12   .58  -7.01  -3.21 
1972 01 -6.84 -14.34 -10.59 
1972 02 -1.76  -8.55  -5.15 
1972 03  3.20  -7.32  -2.06 
1972 04  6.14  -3.65   1.24 
1972 05 13.87   1.73   7.80 
1972 06 20.84   7.17  14.00 
1972 07 23.95  10.60  17.27 
1972 08 18.84   7.45  13.14 
1972 09 13.39   3.43   8.41 
1972 10  7.97   -.23   3.87 
1972 11  1.89  -3.87   -.98 
1972 12  2.53  -2.47    . 2 
1973 01  1.03  -3.49  -1.23 
1973 02 -1.01  -9.09  -5.05 
1973 03  5.80  -5.57    .11 
1973 04  6.01  -2.98   1.51 
1973 05 13.76   2.52   8.14 
1973 06 21.26   7.22  14.24 
1973 07 23.08  11.57  17.32 
1973 08 18.76   6.93  12.84 
1973 09 11.17   2.77   6.97 
1973 10  6.43  -3.98   1.22 
1973 11 -1.67 -10.05  -5.86 
1973 12 -3.11 -13.62  -8.36 
1974 01  -.19  -5.84  -3.01 
1974 02  1.59  -5.05  -1.73 
1974 03  3.85  -7.61  -1.88 
1974 04  9.75  -2.91   3.42 
1974 05 14.91   -.92   6.99 
1974 06 19.84   5.83  12.83 
1974 07 18.09   8.68  13.38 
1974 08 19.06   7.60  13.33 
1974 09 13.98   5.32   9.64 
1974 10  4.94   1.05   3.00 
1974 11  1.57  -2.29   -.35 
1974 12   .55  -7.75  -3.60 
1975 01   .34  -5.92  -2.79 
1975 02   .34 -11.95  -5.80 
1975 03  3.42  -5.85  -1.21 
1975 04  7.74  -5.64   1.04 
1975 05 15.34   2.17   8.75 
1975 06 19.87   4.28  12.08 
1975 07 23.73   9.27  16.50 
1975 08 21.97   8.85  15.41 
1975 09 15.46   5.58  10.52 
1975 10  8.20    .77   4.48 
1975 11  3.18  -1.59    .79 
1975 12   .79  -8.35  -3.78 
1976 01 -6.39 -18.23 -12.31 
1976 02 -1.28  -8.84  -5.06 
1976 03   . 4 -13.43  -6.69 
1976 04  7.18  -3.25   1.96 
1976 05 16.93   1.97   9.45 
1976 06 19.52   5.84  12.68 
1976 07 21.87   8.43  15.15 
1976 08 21.72   5.70  13.70 
1976 09 11.92    .22   6.07 
1976 10  5.78   -.21   2.78 
1976 11  1.15  -4.73  -1.79 
1976 12 -5.23 -12.44  -8.83 
1977 01 -4.12 -10.69  -7.40 
1977 02 -5.34 -15.08 -10.21 
1977 03  3.56  -6.21  -1.32 
1977 04  4.30  -5.12   -.40 
1977 05 14.14   1.88   8.01 
1977 06 19.94   6.39  13.16 
1977 07 18.17   8.07  13.12 
1977 08 18.27   6.02  12.14 
