1967 10 14.88   4.84   9.86 
1967 11  6.49  -2.33   2.07 
1967 12   .91  -8.64  -3.86 
1968 01   .54 -99.99 -99.99 
1968 02  5.24  -6.19   -.47 
1968 03  9.09  -1.81   3.64 
1968 04  8.57   -.50   4.03 
1968 05 13.26   2.17   7.71 
1968 06 19.03   8.78  13.90 
1968 07 25.65  12.00  18.82 
1968 08 22.07   9.63  15.85 
1968 09 18.52   7.66  13.09 
1968 10 13.15   4.10   8.62 
1968 11  6.30  -3.38   1.46 
1968 12 -4.19 -13.86  -9.02 
1969 01 12.65 -24.86 -18.75 
1969 02 -1.03 -12.99  -7.01 
1969 03  2.95 -99.99 -99.99 
1969 04 14.00 -99.99 -99.99 
1969 05 18.03 -99.99 -99.99 
1969 06 18.04   5.82  11.93 
1969 07 25.20   8.05  16.62 
1969 08 28.67   8.87  18.77 
1969 09 21.44   4.36  12.90 
1969 10  8.35  -3.46   2.44 
1969 11  9.81  -5.14   2.33 
1969 12  5.13  -7.56  -1.21 
1970 01 -4.83 -15.41 -10.12 
1970 02  6.82  -6.32    .25 
1970 03  1.88  -9.43  -3.77 
1970 04  5.55  -5.23    .16 
1970 05 16.01   3.12   9.56 
1970 06 23.49   8.85  16.17 
1970 07 25.50  10.26  17.88 
1970 08 27.08   7.62  17.35 
1970 09 17.10   3.18  10.14 
1970 10 12.52  -2.21   5.15 
1970 11  5.06 -12.12  -3.53 
1970 12   .40 -13.78  -6.69 
1971 01 -3.89 -17.35 -10.62 
1971 02  3.08 -10.03  -3.47 
1971 03  2.96 -10.89  -3.96 
1971 04 10.68  -3.24   3.72 
1971 05 16.37   2.24   9.30 
1971 06 19.01   5.45  12.23 
1971 07 24.54   6.79  15.66 
1971 08 30.50  10.31  20.40 
1971 09 18.20   3.32  10.76 
1971 10 11.07  -2.44   4.31 
1971 11  6.38  -5.75    .31 
1971 12  -.45 -17.37  -8.91 
1972 01 -6.09 -21.53 -13.81 
1972 02  1.19 -15.20  -7.00 
1972 03  7.17  -6.48    .34 
1972 04  9.18  -4.73   2.22 
1972 05 14.72   2.82   8.77 
1972 06 22.02   7.56  14.79 
1972 07 21.74   7.64  14.69 
1972 08 25.09   9.97  17.53 
1972 09 15.94   1.05   8.50 
1972 10 12.70  -3.41   4.64 
1972 11  5.43  -4.83    .29 
1973 01  2.49 -14.22  -5.86 
1973 02  3.37 -11.57  -4.10 
1973 03  7.83  -4.78   1.52 
1973 04  9.16  -3.35   2.90 
1973 05 17.66   1.90   9.78 
1973 06 20.83   6.24  13.53 
1973 07 26.76   7.53  17.14 
1973 08 27.81   8.49  18.15 
1973 09 19.56   3.19  11.37 
1973 10 14.65  -1.10   6.77 
1973 11   . 1 -10.34  -5.16 
1973 12  4.78  -7.93  -1.57 
1974 01 -1.44 -16.70  -9.07 
1974 02  3.95 -10.24  -3.14 
1974 03  4.89  -9.87  -2.49 
1974 04 12.08  -1.99   5.04 
1974 05 13.60    .50   7.05 
1974 06 23.88   7.51  15.69 
1974 07 27.61   8.39  18.00 
1974 08 21.25   6.63  13.94 
1974 09 19.93   3.52  11.72 
1974 10 17.33   1.13   9.22 
1974 11  9.71  -5.26   2.22 
1975 05 13.26   1.70   7.48 
1975 06 18.29   5.56  11.92 
1975 07 26.44  11.73  19.08 
1975 08 22.35   7.30  14.82 
1975 12  3.94 -99.99 -99.99 
1976 01  1.55 -99.99 -99.99 
1976 02  3.07 -99.99 -99.99 
1976 03  2.57 -99.99 -99.99 
1976 04 11.32  -1.29   5.01 
1976 05 99.99   3.66 -99.99 
1976 06 17.45   5.37  11.41 
1976 08 23.58   9.34  16.45 
1976 09 23.13   5.79  14.45 
1976 10 13.43  -1.16   6.13 
1976 11  8.56  -5.71   1.42 
1976 12  5.53  -7.52   -.99 
1977 01   .10 -13.07  -6.48 
1977 02  8.66  -2.41   3.12 
1977 03  5.62  -6.16   -.26 
1977 04 13.70  -1.25   6.22 
1977 05 15.67   2.64   9.15 
1977 06 23.80   7.34  15.57 
1977 07 23.89   8.66  16.27 
1977 08 20.85   7.40  14.12 
1977 09 16.37   4.06  10.21 
1977 10 13.21  -1.27   5.97 
1978 05 13.18   1.83   7.50 
1978 06 21.44   6.92  14.18 
1978 07 23.35   9.08  16.21 
1978 08 22.68   7.17  14.92 
