1967 06 14.07   7.46  10.76 
1967 07 17.56  10.20  13.87 
1967 08 16.49  10.56  13.52 
1967 09 13.19   6.12   9.65 
1967 11 99.99  -6.01 -99.99 
1967 12 99.99 -13.69 -99.99 
1968 01 -7.01 -16.39 -11.70 
1968 02 -1.56  -9.93  -5.74 
1968 03  1.57  -6.43  -2.42 
1968 04  4.54  -4.55    . 0 
1968 05 12.01   2.86   7.43 
1968 06 15.38   6.10  10.74 
1968 07 17.89   9.97  13.93 
1968 08 18.04  10.01  14.03 
1968 09 13.54   3.90   8.72 
1968 10  5.32  -1.57   1.87 
1968 11   .49  -6.43  -2.96 
1968 12 -9.56 -19.68 -14.62 
1969 01 10.12 -20.19 -15.15 
1969 03  1.93  -6.45  -2.26 
1969 04  8.29   -.39   3.95 
1969 05 11.97   3.86   7.91 
1969 06 16.08   7.75  11.91 
1969 07 16.00   9.55  12.77 
1969 08 15.62   7.93  11.77 
1969 09 13.84   5.17   9.50 
1969 10  9.14   1.41   5.28 
1969 11  -.10  -7.14  -3.62 
1969 12  2.15  -3.97   -.91 
1970 01 -7.23 -16.09 -11.66 
1970 02  2.46  -4.80  -1.17 
1970 03  4.77  -3.15    .80 
1970 04  4.44  -3.22    .61 
1970 05 12.17   2.60   7.38 
1970 06 14.86   7.07  10.96 
1970 07 16.12   8.89  12.50 
1970 08 15.63   8.72  12.18 
1970 09 11.50   4.04   7.77 
1970 10  4.50  -2.89    .80 
1970 11   .62  -5.98  -2.68 
1970 12 -5.41 -14.03  -9.71 
1971 01 11.07 -23.31 -17.18 
1971 02 -2.29 -11.93  -7.11 
1971 03 -3.81 -17.43 -10.62 
1971 04  3.76  -3.90    .-7 
1971 05  7.89    .99   4.44 
1971 06 12.78   5.16   8.96 
1971 07 15.61   8.55  12.08 
1971 08 15.56   9.60  12.58 
1971 09 12.51   4.90   8.70 
1971 10  5.05  -2.38   1.33 
1971 11 -2.07  -9.46  -5.76 
1971 12 -4.98 -14.41  -9.69 
1972 03 -4.17 -17.49 -10.83 
1972 04  1.28 -11.06  -4.89 
1972 05  8.52    .58   4.55 
1972 06 12.72   5.13   8.92 
1972 07 17.16   8.71  12.93 
1972 08 15.72   8.83  12.27 
1972 09 11.82 -99.99 -99.99 
1972 10  5.04  -1.66   1.69 
1972 11   .94 -99.99 -99.99 
1972 12 -4.71 -12.80  -8.76 
1973 01 10.35 -20.44 -15.39 
1973 02 -2.41 -15.66  -9.03 
1973 03  -.46  -8.80  -4.63 
1973 04  5.94  -2.10   1.91 
1973 05 11.16   2.19   6.67 
1973 06 13.30   5.76   9.53 
1973 07 15.85   9.13  12.49 
1973 08 15.08   7.86  11.47 
1973 09 12.35   3.95   8.15 
1973 10  5.13  -1.43   1.85 
1973 11 -3.11 -13.25  -8.18 
1973 12 -2.11 -10.58  -6.35 
1974 01 -7.36 -17.79 -12.57 
1974 02 -4.94 -14.62  -9.78 
1974 03   .10 -10.36  -5.12 
1974 04  6.44  -1.09   2.67 
1974 05 12.08   2.30   7.19 
1974 06 14.83   7.36  11.09 
1974 07 15.47   9.60  12.53 
1974 08 16.60   9.52  13.06 
1974 09 15.04   7.40  11.22 
1974 10  6.05    .27   3.16 
1974 11   .96  -6.59  -2.81 
1974 12 -1.96  -8.75  -5.35 
1975 01 -6.16 -15.73 -10.94 
1975 02 -4.14 -18.18 -11.16 
1975 03  -.60 -12.67  -6.63 
1975 04  2.83  -4.87  -1.02 
1975 05  9.60   2.22   5.91 
1975 06 12.92   6.12   9.52 
1975 07 16.15   9.14  12.65 
1975 08 16.74   8.92  12.83 
1975 09 12.75   5.58   9.16 
1975 10  6.97   -.81   3.08 
1975 11 -3.48 -11.99  -7.73 
1975 12 -6.00 -14.56 -10.28 
1976 01 -4.50 -11.83  -8.16 
1976 02 -5.02 -16.71 -10.87 
1976 03  -.68  -9.93  -5.30 
1976 04  5.18  -3.14   1.01 
1976 06 13.55   7.04  10.29 
1976 07 17.19   9.27  13.23 
1976 08 17.03   9.00  13.01 
1976 09 12.75   4.46   8.60 
1976 10  5.13  -2.44   1.34 
1976 11  4.05  -1.47   1.29 
1976 12 99.99  -5.65 -99.99 
1977 01  2.34  -1.37    .48 
1977 02  3.04  -2.89    . 7 
1977 03  -.75 -12.22  -6.48 
1977 04  3.30  -3.38    .-4 
1977 05  9.42   2.25   5.83 
1977 06 15.04   7.60  11.32 
1977 07 99.99  10.49 -99.99 
1977 08 17.75  10.85  14.30 
1977 09 13.56   5.78   9.67 
1977 10  7.26   1.47   4.36 
1977 11 -3.92 -12.39  -8.15 
1977 12 -7.51 -15.54 -11.52 
1978 01 -1.70  -8.38  -5.04 
