1964 01 -6.12 -13.69  -9.90 
1964 02 -2.33 -10.72  -6.53 
1964 03 -2.99 -13.80  -8.39 
1964 04  4.91  -2.72   1.09 
1964 07 17.74  10.10  13.92 
1964 08 16.31   9.01  12.66 
1964 09 13.88   5.54   9.71 
1964 10  5.75  -1.42   2.16 
1964 11 -2.87  -9.60  -6.24 
1964 12 12.15 -20.36 -16.25 
1965 01 -8.22 -16.29 -12.25 
1965 02 -6.43 -15.11 -10.77 
1965 03  4.65  -1.34   1.65 
1965 04  7.35   -.70   3.32 
1965 05 10.33   2.14   6.23 
1965 06 13.65   7.29  10.46 
1965 07 17.10  10.21  13.65 
1965 08 15.40   8.50  11.95 
1965 09 13.48   8.05  10.76 
1965 10  1.86  -5.25  -1.69 
1965 11 -3.55 -10.96  -7.25 
1965 12 -6.90 -15.18 -11.04 
1966 01 -8.85 -16.15 -12.50 
1966 02 -5.89 -13.86  -9.87 
1966 03 -3.32 -12.69  -8.00 
1966 04  5.85  -2.27   1.79 
1966 05 10.50   2.99   6.74 
1966 06 16.68   9.00  12.84 
1966 07 18.49  10.67  14.58 
1966 08 15.80   9.47  12.64 
1966 09 13.76   4.79   9.27 
1966 10  3.91  -1.94    .98 
1966 11 -3.57 -10.53  -7.05 
1966 12 -7.58 -14.98 -11.28 
1967 01 -8.12 -17.31 -12.71 
1967 02 -3.99 -13.64  -8.81 
1967 03  1.24  -8.91  -3.83 
1967 04  5.80  -1.82   1.99 
1967 05 12.45   2.69   7.57 
1967 06 16.65   9.31  12.98 
1967 07 20.01  11.40  15.70 
1967 08 18.25  11.14  14.69 
1967 09 12.85   5.96   9.40 
1967 10  5.92  -2.04   1.94 
1967 11  3.05  -5.29  -1.12 
1967 12 -5.58 -12.85  -9.21 
1968 01 -7.91 -15.42 -11.66 
1968 02 -1.99  -8.72  -5.35 
1968 03  2.27  -6.11  -1.92 
1968 04  5.76  -2.93   1.41 
1968 05 14.33   4.06   9.19 
1968 06 17.95   7.93  12.94 
1968 07 20.35  11.34  15.84 
1968 08 19.91   9.71  14.81 
1968 09 13.52   2.63   8.07 
1968 10  4.27  -2.81    .73 
1968 11 -1.96  -9.00  -5.48 
1968 12 10.55 -19.14 -14.84 
1969 01 11.92 -19.82 -15.87 
1969 02 -2.84 -11.79  -7.31 
1969 03  2.28  -6.29  -2.00 
1969 04  8.81   -.74   4.03 
1969 05 14.16   4.05   9.10 
1969 06 19.50   9.88  14.69 
1969 07 19.34  10.83  15.08 
1969 08 17.28   7.26  12.27 
1969 09 14.69   4.15   9.42 
1969 10  9.10    .26   4.68 
1969 11  -.58  -7.89  -4.23 
1969 12  1.05  -6.11  -2.52 
1970 01 -9.60 -16.95 -13.28 
1970 02  1.74  -5.37  -1.81 
1970 03  4.77  -3.52    .62 
1970 04  5.54  -2.65   1.44 
1970 05 12.87   2.91   7.89 
1970 06 15.90   7.54  11.71 
1970 07 16.94   9.68  13.31 
1970 08 15.89   8.25  12.07 
1970 09 11.70   3.42   7.56 
1970 10  3.15  -5.06   -.95 
1970 11 -1.93  -7.53  -4.73 
1970 12 -4.19 -15.32  -9.76 
1971 01 10.43 -23.46 -16.94 
1971 02 -2.88 -12.06  -7.47 
1971 03 -4.30 -15.59  -9.94 
1971 04  4.56  -2.70    .92 
1971 05  8.31   1.15   4.73 
1971 06 99.99   6.60 -99.99 
1971 07 16.51   9.43  12.97 
1971 08 99.99   9.58 -99.99 
1971 09 12.26   4.90   8.58 
1971 10  3.18  -3.34    .-7 
1971 11 -3.42 -11.94  -7.68 
1971 12 -3.99 -14.05  -9.02 
1972 01 -8.14 -18.29 -13.21 
1972 02 -4.66 -16.82 -10.74 
1972 04  1.82  -8.67  -3.42 
1972 05 10.27   1.42   5.84 
1972 06 14.34   6.43  10.38 
1972 07 19.71   7.91  13.81 
1972 08 17.45   6.68  12.07 
1972 11 -1.80  -8.34  -5.07 
1972 12 -7.12 -13.53 -10.32 
1973 01 10.83 -19.26 -15.04 
1973 02 -4.56 -14.51  -9.53 
1973 03   .58  -7.51  -3.46 
1973 04  7.32   -.96   3.18 
1973 05 12.94   3.08   8.01 
1973 06 16.08   7.53  11.80 
