1960 01 -15.44 -25.75 -20.59 
1960 02  -9.12 -22.39 -15.75 
1960 03  -4.62 -19.95 -12.28 
1960 04   6.89  -4.60   1.14 
1960 05  16.99   1.81   9.39 
1960 06  20.54   6.22  13.38 
1960 07  26.89   9.51  18.20 
1960 08  24.60   8.53  16.56 
1960 09  18.89   3.46  11.17 
1960 10   9.66  -2.36   3.64 
1960 11  -3.65 -13.39  -8.52 
1960 12 -10.92 -20.84 -15.88 
1961 01 -11.43 -24.35 -17.89 
1961 02  -6.96 -20.79 -13.87 
1961 03  -0.04 -14.35  -7.19 
1961 04   6.08  -7.31   -.61 
1961 05  18.39   2.15  10.27 
1961 06  27.28   8.67  17.97 
1961 07  26.03   9.45  17.74 
1961 08  30.09   9.63  19.86 
1961 09  14.69   0.76   7.72 
1961 10   8.64  -1.65   3.49 
1961 11  -2.64 -11.88  -7.26 
1961 12 -17.37 -28.27 -22.82 
1962 01 -15.36 -99.99 -99.99 
1962 02 -14.46 -27.67 -21.06 
1962 03  -3.32 -16.65  -9.98 
1962 04   5.87  -5.38   0.24 
1962 05  18.14   2.05  10.09 
1962 06  25.07   8.93  17.00 
1962 07  24.97   9.10  17.03 
1962 08  25.00   8.85  16.93 
1962 09  18.28   3.61  10.94 
1962 10 -99.99   0.71 -99.99 
1962 11 -99.99  -7.85 -99.99 
1962 12 -99.99 -19.18 -99.99 
1963 01 -19.68 -29.55 -24.61 
1963 02 -12.17 -24.72 -18.44 
1963 03  -2.04 -15.80  -8.92 
1963 04   9.85  -3.92   2.96 
1963 05  16.62   0.17   8.39 
1963 06  21.40   8.99  15.19 
1963 07  26.99  12.79  19.89 
1963 08  26.36  10.75  18.55 
1963 09  20.98   5.67  13.32 
1963 10  16.90   1.60   9.25 
1963 11   -.27 -12.18  -6.22 
1963 12 -11.19 -22.65 -16.92 
1964 01 -11.05 -22.18 -16.61 
1964 02  -4.08 -17.36 -10.72 
1964 03  -7.72 -23.59 -15.65 
1964 04  10.78  -3.33   3.72 
1964 05  17.95   3.86  10.90 
1964 06  24.50   5.71  15.10 
1964 07  27.57  12.22  19.89 
1964 08  20.48   8.47  14.47 
1964 09  14.64   3.03   8.83 
1964 10  11.36  -1.71   4.82 
1964 11  -3.96 -13.09  -8.52 
1964 12 -17.58 -28.33 -22.95 
1965 01 -17.78 -29.50 -23.64 
1965 02 -16.34 -29.20 -22.77 
1965 03  -5.85 -22.65 -14.25 
1965 04   8.59  -3.81   2.39 
1965 05  15.89   2.30   9.09 
1965 06  22.06   8.42  15.24 
1965 07  25.29  10.34  17.81 
1965 08  24.12   9.25  16.68 
1965 09  12.65   -.35   6.14 
1965 10  13.29  -1.37   5.96 
1965 11  -5.65 -16.00 -10.82 
1965 12  -8.30 -18.18 -13.24 
1966 01 -23.38 -35.86 -29.62 
1966 02 -11.68 -27.42 -19.54 
1966 03  -1.04 -14.93  -7.98 
1966 04   4.51  -6.46   -.97 
1966 05  17.02   1.16   9.09 
1966 06  20.89   7.70  14.29 
1966 07  24.87  10.84  17.85 
1966 08  23.47   9.18  16.33 
1966 09  20.61   5.06  12.83 
1966 10   9.35  -2.15   3.60 
1966 11  -8.04 -18.76 -13.40 
1966 12 -11.46 -21.56 -16.51 
1967 01 -16.86 -26.54 -21.70 
1967 02 -13.42 -27.14 -20.27 
1967 03  -5.16 -19.45 -12.30 
1967 04   2.95  -9.91  -3.48 
1967 05  16.51   1.05   8.78 
1967 06  21.35   6.09  13.72 
1967 07  25.39   9.67  17.52 
1967 08  25.75   9.03  17.39 
1967 09  21.80   6.05  13.92 
1967 10   6.63  -1.90   2.36 
1967 11  -2.04  -8.84  -5.44 
1967 12 -11.16 -19.68 -15.42 
1968 01 -16.19 -27.15 -21.67 
1968 02  -9.96 -22.57 -16.26 
1968 03   1.73 -11.21  -4.73 
1968 04   8.20  -3.88   2.15 
