1967 08 24.70  13.56  19.13 
1967 09 21.49   8.34  14.91 
1967 10 12.28   3.68   7.98 
1967 11  2.34  -4.42  -1.03 
1967 12 -1.47  -9.51  -5.49 
1968 01 -9.28 -18.99 -14.13 
1968 02 -6.90 -15.79 -11.34 
1968 03  3.87  -6.25  -1.19 
1968 04 15.01   1.87   8.44 
1968 05 17.98   5.72  11.85 
1968 06 21.90  11.95  16.92 
1968 07 26.65  14.65  20.65 
1968 08 23.89  12.23  18.06 
1968 09 22.74  11.03  16.88 
1968 10 15.28   5.03  10.15 
1968 11  2.76  -3.12   -.17 
1968 12 -5.96 -13.22  -9.59 
1969 01 -5.21 -14.07  -9.63 
1969 02 -2.02 -10.40  -6.21 
1969 03   .99  -7.48  -3.24 
1969 04 10.68    .23   5.45 
1969 05 17.07   4.46  10.77 
1969 06 23.06  11.60  17.33 
1969 07 26.33  13.96  20.14 
1969 08 27.10  15.02  21.06 
1969 09 19.70   8.79  14.24 
1969 10 12.51   2.87   7.69 
1969 11  5.26   -.71   2.27 
1969 12 -4.42 -11.55  -7.99 
1970 01 -9.72 -19.35 -14.54 
1970 02 -5.68 -15.78 -10.73 
1970 03   .81  -8.22  -3.70 
1970 04 11.22    . 3   5.62 
1970 05 18.15   6.44  12.29 
1970 06 24.08  11.82  17.95 
1970 07 26.73  15.23  20.98 
1970 08 26.00  14.03  20.01 
1970 09 19.52   9.62  14.57 
1970 10 14.61   5.44  10.02 
1970 11  5.47   -.50   2.48 
1970 12 -6.85 -14.28 -10.56 
1971 01 -9.47 -19.04 -14.25 
1971 02 -4.21 -13.20  -8.71 
1971 03   .55  -9.68  -4.56 
1971 04  8.22  -1.96   3.13 
1971 05 19.29   6.49  12.89 
1971 06 24.84  11.75  18.29 
1971 07 25.15  13.40  19.27 
1971 08 24.55  13.20  18.87 
1971 09 22.36  11.93  17.14 
1971 10 16.29   6.47  11.38 
1971 11  3.15  -3.27    .-5 
1971 12 -2.70 -11.29  -6.99 
1972 01 -3.75 -14.90  -9.32 
1972 02 -6.76 -17.00 -11.88 
1972 03 -1.19 -10.18  -5.68 
1972 04  7.16  -2.18   2.48 
1972 05 20.51   7.32  13.91 
1972 06 22.54  11.61  17.07 
1972 07 25.95  14.30  20.12 
1972 08 24.20  12.86  18.53 
1972 09 21.20   8.60  14.90 
1972 10 10.09    .98   5.53 
1972 11  2.56  -3.27   -.35 
1972 12 -5.86 -13.67  -9.76 
1973 01 -3.94 -12.29  -8.11 
1973 02 -4.96 -14.23  -9.59 
1973 03  4.62  -2.45   1.08 
1973 04 99.99    .32 -99.99 
1973 05 99.99   6.44 -99.99 
1973 06 24.13  13.74  18.93 
1973 07 27.32  15.84  21.58 
1973 08 26.79  16.61  21.70 
