1966 01 -9.59 -16.81 -13.20 
1966 02   .94  -6.70  -2.88 
1966 03  7.07  -5.32    .87 
1966 05 15.90   2.15   9.02 
1966 07 21.52   8.39  14.95 
1966 08 19.95 -99.99 -99.99 
1966 09 17.57   4.96  11.26 
1966 11 -1.90 -99.99 -99.99 
1966 12 -1.88  -8.81  -5.34 
1967 01 -5.28 -12.80  -9.04 
1967 02  2.08  -6.40  -2.15 
1967 03   .99  -9.32  -4.16 
1967 04  9.05  -4.36   2.34 
1967 05 14.35   2.31   8.33 
1967 06 22.46   7.58  15.02 
1967 07 22.00   8.56  15.28 
1967 08 25.80   8.84  17.32 
1967 09 19.20   6.01  12.60 
1967 10  8.53   1.63   5.08 
1967 11  2.08  -3.65   -.78 
1968 01 -4.19 -13.54  -8.86 
1968 02  1.21 -13.38  -6.08 
1968 03  6.99  -2.08   2.45 
1968 04  7.12  -1.47   2.82 
1968 05 16.16   2.40   9.28 
1968 06 17.68   5.50  11.59 
1968 07 23.02   8.14  15.58 
1968 08 20.51   7.27  13.89 
1968 09 14.75   4.48   9.62 
1968 10  8.43   1.17   4.80 
1968 11  3.31  -4.26   -.47 
1968 12 -8.64 -99.99 -99.99 
1969 01 16.75 -30.48 -23.61 
1969 02  1.03 -14.13  -6.55 
1969 03  6.03  -7.45   -.70 
1969 04 12.34   -.82   5.76 
1969 05 18.01   2.86  10.43 
1969 06 24.18   8.37  16.27 
1969 07 21.94   7.83  14.88 
1969 08 19.08 -99.99 -99.99 
1969 09 15.82 -99.99 -99.99 
1969 10 10.24  -1.33   4.45 
1969 12   .46  -6.70  -3.12 
1970 01 -8.66 -16.43 -12.54 
1970 02  2.16  -7.61  -2.72 
1970 03  5.69  -5.72    .-1 
1970 05 14.40   2.33   8.36 
1970 06 22.10 -99.99 -99.99 
1970 08 22.49   6.77  14.63 
1970 09 14.63   3.19   8.91 
1970 10 10.16   -.96   4.60 
1970 12 -6.32 -15.75 -11.03 
1971 01 -7.12 -15.43 -11.27 
1971 02   .45 -10.83  -5.19 
1971 03  3.47  -8.92  -2.72 
1971 04 12.67  -1.57   5.55 
1971 05 17.54   1.50   9.52 
1971 06 19.49   7.14  13.31 
1971 11  2.62 -99.99 -99.99 
1972 01 10.25 -99.99 -99.99 
1972 02 -3.28 -99.99 -99.99 
1972 03  5.99 -99.99 -99.99 
1972 10  9.35 -99.99 -99.99 
1972 11  2.22  -3.77   -.77 
1972 12 -6.20 -14.19 -10.19 
1973 04 10.48  -3.50   3.48 
1973 05 17.16 -99.99 -99.99 
1973 10  8.02 -99.99 -99.99 
1974 11 -1.35  -9.29  -5.32 
