1964 02 -1.02  -8.18  -4.60 
1964 03  -.65  -7.38  -4.01 
1964 04  3.26  -5.02   -.88 
1964 05  8.53  -1.05   3.73 
1964 06 13.97   4.98   9.47 
1964 07 16.49   6.56  11.52 
1964 08 15.15   5.36  10.25 
1964 09  9.10    .90   5.00 
1964 10  8.63   -.31   4.16 
1964 11  -.89  -7.93  -4.41 
1964 12 -8.14 -15.64 -11.89 
1965 01 -2.17  -9.34  -5.75 
1965 02 -2.31 -10.59  -6.45 
1965 03   .94  -9.49  -4.27 
1965 04  5.38  -3.08   1.15 
1965 05 10.22   -.61   4.80 
1965 06 17.16   4.30  10.73 
1965 07 20.45   8.87  14.66 
1965 08 17.95   6.63  12.29 
1965 09 11.03    .69   5.85 
1965 10  8.77   1.43   5.10 
1965 11   .11  -6.59  -3.24 
1965 12 -3.64  -9.93  -6.79 
1966 01 -5.71 -12.45  -9.08 
1966 02 -2.72  -8.32  -5.52 
1966 03   .19  -6.40  -3.10 
1966 04  4.51  -3.76    .37 
1966 05 10.65   1.26   5.95 
1966 06 12.20   2.94   7.57 
1966 07 16.20   6.39  11.29 
1966 08 17.06   7.92  12.49 
1966 09 15.01   5.97  10.49 
1966 10  5.36  -1.64   1.86 
1966 11 -1.37  -6.98  -4.17 
1966 12 -3.14  -6.96  -5.05 
1967 01 -3.43  -8.95  -6.19 
1967 02 -1.53  -7.32  -4.42 
1967 03 -2.74  -9.05  -5.89 
1967 04  2.75  -4.26   -.75 
1967 05  9.71   1.00   5.35 
1967 06 18.87   7.35  13.11 
1967 07 19.19   8.54  13.86 
1967 08 23.03  12.40  17.71 
1967 09 17.48   8.16  12.82 
1967 10  3.68  -1.41   1.13 
1967 11 -1.24  -5.98  -3.61 
1967 12 -4.10 -10.59  -7.34 
1968 01 -6.34 -11.72  -9.03 
1968 02  1.68 -99.99 -99.99 
1968 03  1.32  -4.61  -1.64 
1968 04  1.80  -5.33  -1.76 
1968 05  9.38    .70   5.04 
1968 06 12.13   2.92   7.52 
1968 07 18.69   7.86  13.27 
1968 08 14.73   6.59  10.66 
1968 09 11.69   3.41   7.55 
1968 10  2.58  -2.61    .-1 
1968 11 -2.32  -6.96  -4.64 
1968 12 -7.99 -16.04 -12.02 
1969 01 14.48 -19.51 -16.99 
1969 02 -3.66  -9.66  -6.66 
1969 03  1.16  -5.34  -2.08 
1969 04  3.49  -3.35    . 7 
1969 05 12.39   3.26   7.82 
1969 06 18.14   9.67  13.90 
1969 07 16.40 -99.99 -99.99 
1969 08 15.84   5.35  10.59 
1969 09 10.64   1.55   6.09 
1969 10  4.23   -.96   1.63 
1969 11  1.80  -4.82  -1.51 
1969 12 -3.75  -8.18  -5.96 
1970 01 -6.29 -13.22  -9.75 
1970 02   .61  -5.35  -2.36 
1970 03 -1.44  -7.46  -4.44 
1970 04  2.40  -5.77  -1.68 
1970 05  9.72    .34   5.03 
1970 06 17.56   7.03  12.29 
1970 07 19.86   8.59  14.22 
1970 08 19.79   8.97  14.38 
1970 10  4.23  -1.97   1.13 
1970 11 99.99  -9.10 -99.99 
1970 12 99.99 -11.80 -99.99 
1971 01 99.99 -12.17 -99.99 
1971 02 -3.76  -8.12  -5.94 
1971 03 -3.91 -10.43  -7.17 
1971 04  4.52  -3.54    .49 
1971 05 10.01   1.88   5.94 
1971 06 10.86   3.20   7.03 
1971 07 18.53   8.82  13.67 
1971 08 20.45  10.28  15.36 
1971 09  8.56   1.28   4.92 
1971 10  3.20  -2.51    .34 
1971 11 -2.68  -6.86  -4.77 
1971 12 -9.28 -14.30 -11.79 
1972 01 99.99 -16.17 -99.99 
1972 02 -5.61  -9.60  -7.60 
1972 03   .72  -6.18  -2.73 
1972 04   .39  -8.04  -3.82 
1972 05 10.22   1.75   5.98 
1972 06 11.97   3.79   7.88 
1972 07 16.14   6.99  11.56 
1972 08 18.61   9.26  13.93 
1972 09  7.83    .12   3.97 
1972 10  5.42  -2.14   1.64 
1972 11 -1.71  -6.08  -3.89 
1972 12 -8.58 -14.21 -11.39 
1973 01 -6.66 -11.81  -9.23 
1973 02 -2.77  -8.41  -5.59 
1973 03  -.43  -6.90  -3.66 
1973 04  4.13  -4.75   -.30 
1973 05 10.09   1.01   5.55 
1973 06 12.68    .33   6.50 
1973 07 17.43   6.35  11.89 
1973 08 17.83   6.11  11.97 
1973 09 12.36   1.74   7.05 
1973 10  3.57  -2.82    .37 
1973 11 -6.39 -11.31  -8.85 
1973 12 -5.07  -8.33  -6.70 
1974 01 -7.49 -12.93 -10.21 
1974 02 -3.38  -8.04  -5.71 
1974 03 -2.07  -8.62  -5.34 
1974 04  3.37  -3.24    . 6 
1974 05  5.67  -1.64   2.01 
1974 06 15.11   5.17  10.13 
1974 07 15.58   4.46  10.02 
1974 08 18.31   8.62  13.46 
1974 09 14.57   5.69  10.13 
1974 10  9.43   -.69   4.37 
1974 11 -1.75  -9.13  -5.44 
1974 12 -4.78  -9.84  -7.31 
1975 01 -7.03 -12.84  -9.93 
1975 02 -7.22 -13.51 -10.36 
1975 03 -3.59  -9.75  -6.67 
1975 04  2.25  -4.96  -1.35 
1975 05  8.62   -.11   4.25 
1975 06 11.59   3.02   7.30 
1975 07 18.98   9.26  14.12 
1975 08 13.38   3.28   8.33 
1975 09 14.06   5.24   9.64 
1975 10  2.71  -2.89    .-9 
1975 11 -3.35  -9.80  -6.57 
1975 12 -3.67  -9.75  -6.71 
1976 01 -3.15  -9.41  -6.28 
1976 02 -4.29 -10.34  -7.31 
1976 03 -4.14 -11.01  -7.57 
1976 04  3.46  -4.12   -.32 
1976 05  8.55   -.41   4.07 
1976 06 10.87   1.46   6.16 
1976 07 15.07   5.16  10.11 
1976 08 13.24   5.07   9.15 
1976 09 13.21   5.88   9.54 
1976 10  4.63  -1.87   1.38 
1976 11  1.35  -4.11  -1.38 
1976 12 -1.95  -7.01  -4.48 
1977 01 -3.98  -9.20  -6.59 
1977 02  -.40  -5.48  -2.94 
1977 03 -3.02  -9.29  -6.15 
