1964 01  -9.89 -17.77 -13.83 
1964 02  -1.98 -12.87  -7.42 
1964 03  -7.65 -20.52 -14.08 
1964 04   8.74  -3.41   2.66 
1964 05  17.94   3.94  10.94 
1964 08  19.98   8.25  14.11 
1964 09  12.59   2.26   7.42 
1964 10  11.54   -.93   5.30 
1964 11  -3.17 -10.94  -7.05 
1964 12 -17.33 -26.75 -22.04 
1965 01 -17.26 -26.55 -21.90 
1965 02 -13.76 -25.31 -19.53 
1965 03  -6.33 -19.21 -12.77 
1965 04   6.95  -3.12   1.91 
1965 05  15.76   2.77   9.26 
1965 06  19.62   8.22  13.92 
1965 07  24.37  11.53  17.95 
1965 08  22.97   9.97  16.46 
1965 09  10.21   -.50   4.85 
1965 10  12.90   -.50   6.20 
1965 11  -6.13 -13.13  -9.63 
1965 12  -8.35 -16.81 -12.58 
1966 01 -21.69 -30.69 -26.19 
1966 02 -11.30 -21.76 -16.53 
1966 03  -1.11 -12.00  -6.55 
1966 04   4.86  -5.02  -0.07 
1966 05  19.00   3.65  11.32 
1966 06  18.81   7.43  13.12 
1966 07  22.17  10.71  16.44 
1966 08  20.80   8.58  14.69 
1966 09  19.43   4.81  12.12 
1966 10   9.39  -3.47   2.96 
1966 11  -7.23 -17.56 -12.39 
1966 12  -9.16 -17.54 -13.35 
1967 01 -14.59 -23.88 -19.23 
1967 02 -10.04 -22.39 -16.21 
1967 03  -7.33 -17.75 -12.54 
1967 04   3.28  -7.38  -2.05 
1967 05  16.49   0.90   8.69 
1967 06  20.16   7.38  13.77 
1967 07  24.35  10.85  17.60 
1967 08  24.63  10.00  17.31 
1967 09  21.89   5.68  13.78 
1967 10   7.26  -1.36   2.95 
1967 11  -1.53  -8.60  -5.06 
1967 12 -10.00 -18.79 -14.40 
1968 01 -14.65 -24.79 -19.72 
1968 02  -7.38 -17.21 -12.29 
1968 03   2.09  -6.43  -2.16 
1968 04   9.00  -3.11   2.94 
1968 05  16.41   2.71   9.55 
1968 06  21.98   7.67  14.82 
1968 07  23.11  10.04  16.57 
1968 08  18.79   7.97  13.38 
1968 09  15.38   5.56  10.47 
1968 10   8.12   -.57   3.77 
1968 11   0.48  -6.98  -3.25 
1969 01 -23.69 -33.84 -28.77 
1969 02 -10.58 -20.49 -15.53 
1969 03  -4.05 -15.64  -9.84 
1969 04  13.30   0.56   6.93 
1969 05  16.62   3.36   9.99 
1969 06  20.95   6.01  13.48 
1969 07  22.45   9.22  15.83 
1969 08  24.61   9.97  17.29 
1969 09 -99.99   5.24 -99.99 
1969 10   3.13  -3.94   -.40 
1969 11   0.48  -9.50  -4.51 
1969 12  -5.54 -13.44  -9.49 
1970 01 -15.93 -24.56 -20.24 
1970 02  -6.42 -17.95 -12.18 
1970 03  -6.63 -18.19 -12.41 
1970 04   7.24  -3.53   1.85 
1970 05  17.23   2.51   9.87 
1970 06  23.45  11.48  17.46 
1970 07  22.86  12.23  17.54 
1970 08  23.51   9.06  16.28 
1970 09  17.61   2.90  10.25 
1970 10   8.18  -2.33   2.92 
1970 11  -5.97 -11.93  -8.95 
1970 12 -16.31 -26.34 -21.32 
1971 01 -19.26 -28.13 -23.69 
1971 02  -6.53 -17.93 -12.23 
