1967 01 17.89 -25.23 -21.56 
1967 02 16.67 -24.08 -20.37 
1967 11 10.81 -16.57 -13.69 
1967 12 99.99 -20.82 -99.99 
1968 01 18.50 -25.60 -22.05 
1968 02 10.10 -19.43 -14.77 
1968 03 -4.01 -12.74  -8.37 
1968 04  -.72  -9.10  -4.91 
1968 11 10.57 -16.74 -13.65 
1968 12 20.25 -28.03 -24.14 
1969 01 26.02 -34.31 -30.16 
1969 02 14.35 -22.61 -18.48 
1969 03 -8.07 -17.81 -12.94 
1969 04  2.19  -7.46  -2.63 
1969 11 12.61 -19.21 -15.91 
1969 12 -6.50 -13.45  -9.97 
1970 01 18.62 -26.40 -22.51 
1970 02 -6.90 -15.81 -11.35 
1970 03 -2.91 -11.61  -7.26 
1970 04  -.25  -9.39  -4.82 
1970 11 -9.47 -17.35 -13.41 
1970 12 17.24 -24.11 -20.67 
1971 01 25.63 -34.00 -29.81 
1971 02 13.12 -21.98 -17.54 
1971 03 12.15 -22.50 -17.32 
1971 04 -1.67 -11.93  -6.80 
1971 05  6.18  -1.08   2.55 
1971 06 16.65   7.26  11.95 
1971 07 16.65   7.20  11.92 
1971 10 -5.59 -10.39  -7.99 
1971 11 13.87 -19.20 -16.53 
1971 12 20.18 -28.01 -24.09 
1972 01 21.77 -30.14 -25.95 
1972 02 20.37 -28.23 -24.30 
1972 03 13.48 -23.37 -18.42 
1972 04 -5.45 -18.34 -11.89 
1972 05  7.55  -2.00   2.77 
1972 06 15.86   6.23  11.04 
1972 07 17.83   8.71  13.27 
1973 05  8.41    .52   4.46 
1973 09  8.38    .93   4.65 
1973 10 -4.92  -8.85  -6.89 
1977 02 -5.28 -10.58  -7.93 
1977 03 10.22 -18.45 -14.34 
1977 04   .-1  -9.02  -4.51 
1977 05  7.90    .58   4.24 
1977 07 17.11   8.63  12.87 
1977 08 17.52   9.09  13.30 
1977 09  6.66    .56   3.61 
1977 10 -2.29  -7.51  -4.90 
1977 12 22.84 -29.09 -25.96 
1978 01 11.79 -16.91 -14.35 
1978 02 -9.77 -17.16 -13.46 
1978 03 -6.91 -14.59 -10.75 
1978 04   .71  -7.49  -3.39 
1978 05  8.87    .25   4.56 
