1966 06 20.86   6.68  13.77 
1966 07 27.10   9.77  18.43 
1966 08 26.01   9.28  17.64 
1966 09 23.93   8.72  16.33 
1966 10 13.96   2.06   8.01 
1966 11  6.45  -2.32   2.06 
1966 12  3.69  -2.74    .47 
1967 01  4.11  -2.48    .81 
1967 02  6.09  -2.23   1.93 
1967 03  6.15  -3.41   1.37 
1967 04 11.41  -1.55   4.92 
1967 05 17.86   4.03  10.94 
1967 06 22.63   8.49  15.56 
1967 07 29.50  10.88  20.19 
1967 08 30.61  11.32  20.96 
1967 09 25.98   8.92  17.45 
1967 10 14.21   2.87   8.54 
1968 07 27.82   9.88  18.85 
1968 08 24.92   9.64  17.28 
1968 09 18.84   6.56  12.70 
1968 11  6.42  -2.27   2.07 
1968 12   .27 -99.99 -99.99 
1969 01 -3.88 -12.82  -8.35 
1969 02   .93  -8.54  -3.80 
1969 03  5.79  -7.98  -1.09 
1969 04 13.70    .60   7.15 
1969 05 19.84   3.97  11.90 
1969 06 22.05   7.18  14.61 
1969 07 26.59   7.94  17.26 
1969 08 28.77   7.87  18.32 
1969 09 21.59   5.50  13.54 
1969 10 11.04   -.70   5.17 
1969 11  7.27  -3.29   1.99 
1969 12  2.43  -5.29  -1.43 
1970 01   .92  -8.03  -3.55 
1970 02  2.99  -4.41   -.70 
1970 03  6.75  -5.23    .76 
1970 04 10.17  -2.17   4.00 
1970 05 19.23   3.48  11.35 
1970 06 24.47  10.21  17.34 
1970 07 28.51  11.62  20.06 
1970 08 29.40   9.88  19.64 
1970 09 19.01   4.21  11.61 
1970 10 11.09   -.25   5.42 
1970 11  5.48  -2.84   1.32 
1970 12  2.50  -5.50  -1.50 
1971 01  2.36  -6.29  -1.96 
1971 02  4.87  -4.01    .42 
1971 03  6.26  -3.50   1.38 
1971 04 13.30   -.25   6.52 
1971 05 18.37   4.53  11.45 
1971 06 20.61   6.90  13.75 
1971 07 26.62   9.52  18.07 
1971 08 30.96  11.88  21.42 
1971 09 18.96   4.21  11.59 
1971 10 11.50    .18   5.84 
1971 11  6.29  -1.74   2.27 
1971 12   .83  -7.36  -3.26 
