1964 07 38.75  22.87  30.81 
1964 08 36.48  22.30  29.39 
1964 09 29.99  18.45  24.22 
1964 10 24.42  11.15  17.78 
1964 11 19.29   7.20  13.24 
1964 12 14.03   1.22   7.62 
1965 01 14.41   2.17   8.29 
1965 02 12.16    .49   6.32 
1965 03 13.77   1.88   7.82 
1965 04 25.18  13.62  19.40 
1965 05 26.30  16.83  21.56 
1965 06 31.91  19.68  25.79 
1965 07 35.91  21.23  28.57 
1965 08 34.84  20.21  27.53 
1965 09 32.09  18.17  25.13 
1965 10 23.88  11.97  17.92 
1965 11 21.50  10.31  15.90 
1965 12 14.05   4.23   9.14 
1966 01  8.66  -2.16   3.25 
1966 02 11.98    . 5   6.01 
1966 03 18.92   6.33  12.62 
1966 04 23.69  10.41  17.04 
1966 05 26.34  14.88  20.61 
1966 06 31.05  18.33  24.68 
1966 07 36.49  22.61  29.55 
1966 08 33.00  20.25  26.63 
1966 09 28.51  17.56  23.03 
1966 10 24.61  10.56  17.58 
1966 11 22.45   8.03  15.24 
1966 12 14.07   -.41   6.83 
1967 01 15.57    .55   8.05 
1967 02 15.55    .19   7.87 
1967 03 24.33   8.75  16.54 
1967 04 27.54  14.53  21.03 
1967 05 28.83  14.22  21.52 
1967 06 34.16  20.53  27.34 
1967 07 34.13  20.95  27.54 
1967 08 35.29  20.26  27.77 
1967 09 27.89  16.40  22.14 
1967 10 25.44  11.11  18.27 
1967 11 17.52   6.85  12.18 
1967 12 12.24   1.02   6.63 
1968 01  9.92   1.01   5.46 
1968 02 11.33    .42   5.87 
1968 03 17.45   6.51  11.98 
1968 04 22.78  10.87  16.82 
1968 05 26.96  15.39  21.17 
1968 07 31.79  20.27  26.03 
1968 08 33.87  20.44  27.15 
1968 10 27.00  12.44  19.71 
1968 11 17.77   4.44  11.10 
