1961 08 28.75  20.76  24.75 
1961 09 28.04  19.78  23.91 
1961 10 21.18  10.45  15.81 
1961 11 15.74   6.38  11.06 
1961 12  9.14   -.78   4.18 
1962 01  8.30  -1.55   3.37 
1962 02  7.51  -1.54   2.98 
1962 04 16.81   7.42  12.11 
1962 05 23.99  13.34  18.66 
1962 06 25.74  17.79  21.77 
1962 07 27.82  19.04  23.43 
1962 08 28.41  19.26  23.83 
1962 09 24.34  15.17  19.75 
1962 10 21.04  10.73  15.88 
1962 11 13.18   4.14   8.66 
1962 12  7.20  -2.47   2.36 
1963 01  6.04  -3.15   1.44 
1963 02  5.85  -4.67    .58 
1963 03 13.93   3.40   8.66 
1963 04 18.18   7.02  12.60 
1963 05 21.38  10.68  16.02 
1963 06 26.72  16.94  21.83 
1963 07 29.66  19.64  24.65 
1963 08 28.39  18.24  23.31 
1963 09 23.32  14.11  18.71 
1963 10 21.62  10.35  15.98 
1963 11 15.70   6.06  10.88 
1963 12  5.78  -3.03   1.37 
1964 01  9.14   -.66   4.24 
1964 02  8.04   -.87   3.58 
1964 03 12.54   3.47   8.00 
1964 04 15.61   6.37  10.99 
1964 05 23.08  12.44  17.76 
1964 06 26.44  17.19  21.81 
1964 07 28.58  19.92  24.25 
1964 08 27.19  18.45  22.82 
1964 09 26.02  16.66  21.34 
1964 10 18.89   8.95  13.92 
1964 11 16.78   6.35  11.56 
1964 12 10.41   1.96   6.18 
1965 01  7.31  -2.49   2.40 
1965 02  8.64  -1.51   3.56 
1965 03 10.45   1.04   5.75 
1965 04 14.99   5.55  10.27 
1965 05 24.63  13.58  19.10 
1965 06 25.34  16.52  20.93 
1965 07 27.59  19.79  23.69 
1965 08 28.58  19.74  24.16 
1965 09 26.10  18.28  22.19 
1965 10 19.23  10.55  14.89 
1965 11 15.23   6.01  10.62 
1965 12 10.36   1.11   5.73 
1966 01  5.00  -3.08    .96 
1966 02  6.09  -1.31   2.39 
1966 03 11.26   2.51   6.88 
1966 04 14.85   6.04  10.44 
1966 05 20.34  10.97  15.65 
1966 06 25.05  16.16  20.60 
1966 07 30.01  20.35  25.18 
1966 08 28.42  20.27  24.34 
1966 09 24.94  16.42  20.68 
1966 10 20.37   9.85  15.11 
1966 11 14.86   5.72  10.29 
1966 12  8.51    .27   4.39 
1967 01  9.39   1.30   5.35 
1967 02  7.53  -1.73   2.90 
1967 03 11.27   1.80   6.53 
1967 04 18.83   6.31  12.57 
1967 05 19.26   9.42  14.34 
1967 06 25.58  15.80  20.69 
1967 07 28.01  20.21  24.11 
1967 08 27.20  20.04  23.62 
1967 09 23.72  15.02  19.36 
1967 10 20.39  10.80  15.59 
1967 11 13.66   3.68   8.67 
1967 12 11.04   1.55   6.29 
1968 01  6.09  -3.70   1.19 
1968 02  6.13  -4.08   1.02 
1968 03 12.76   2.90   7.83 
1968 04 17.73   7.07  12.40 
1968 05 21.47  11.78  16.62 
1968 06 27.26 -99.99 -99.99 
1968 07 29.72  21.42  25.57 
1968 08 30.25  20.80  25.52 
1968 09 25.57  17.04  21.30 
1968 10 21.20  13.08  17.14 
1968 11 15.89   6.34  11.11 
1968 12  7.78   -.33   3.72 
1969 01  5.60  -2.08   1.75 
1969 02  6.85   -.54   3.15 
1969 03 99.99    .50 -99.99 
1969 04 18.21   7.27  12.74 
1969 05 22.02  12.76  17.39 
1969 06 28.23  18.36  23.29 
1969 07 30.08  15.53  22.80 
1969 08 29.15  14.57  21.86 
1969 09 26.00  15.04  20.52 
1969 10 22.68  10.32  16.50 
1969 11 17.01   8.72  12.87 
1969 12 10.77    .92   5.84 
1970 01  6.00  -5.16    .42 
1970 02  8.97  -1.29   3.84 
1970 03 10.32    .93   5.62 
1970 04 17.49   5.72  11.60 
1970 05 99.99  12.06 -99.99 
1970 06 26.94  18.20  22.57 
1970 07 27.98  20.03  24.00 
1970 08 29.61  21.42  25.51 
1970 10 21.14 -99.99 -99.99 
1970 11 15.40   6.70  11.04 
1970 12 10.34   1.13   5.73 
1971 01  6.15  -2.39   1.88 
1971 02  8.59   -.61   3.99 
1971 03 11.08   1.94   6.51 
1971 04 16.43   6.02  11.22 
1971 05 21.59  11.69  16.64 
1971 06 26.58  17.24  21.91 
1971 07 28.79  20.12  24.45 
1971 08 28.91  19.69  24.30 
1971 09 26.54  18.45  22.49 
1971 10 22.36  14.99  18.67 
1971 11 16.39   5.83  11.11 
1972 01 10.71    .69   5.70 
1972 02  8.56  -1.11   3.72 
1972 03 10.77   2.33   6.55 
1972 04 16.39   6.04  11.21 
1972 05 19.58  12.31  15.94 
1972 06 24.82  16.17  20.49 
1972 07 28.32 -99.99 -99.99 
1972 09 26.04 -99.99 -99.99 
1972 10 18.59   9.14  13.86 
1972 11 14.65   5.02   9.83 
1972 12 99.99   4.28 -99.99 
1973 02  8.17  -1.93   3.12 
1973 05 99.99  12.16 -99.99 
