1957 11 27.80  19.61  23.70 
1957 12 25.94  17.69  21.81 
1958 01 26.36  16.74  21.55 
1958 02 26.81  16.95  21.88 
1958 03 26.20  16.15  21.17 
1958 04 26.85  14.80  20.82 
1958 05 27.56  14.61  21.08 
1958 06 28.23  15.28  21.75 
1958 07 28.75  16.98  22.86 
1958 08 28.97  16.70  22.84 
1958 09 29.30  21.18  25.24 
1958 10 28.59  20.86  24.72 
1958 11 27.69  20.11  23.90 
1958 12 26.80  17.17  21.98 
1959 01 26.33  17.09  21.71 
1959 02 25.98  17.07  21.52 
1959 03 27.08  17.77  22.42 
1959 04 27.03  18.20  22.61 
1959 05 27.81  19.35  23.58 
1959 06 28.80  19.48  24.14 
1959 07 29.29  20.04  24.66 
1959 08 29.72  20.28  25.00 
1959 09 29.18  19.89  24.53 
1959 10 29.18  18.81  23.99 
1959 11 27.63  18.07  22.84 
1959 12 25.93  17.09  21.51 
