1958 07 32.16  23.68  27.92 
1958 08 29.25  23.09  26.17 
1958 09 25.71  18.34  22.02 
1958 10 20.11  13.60  16.85 
1958 11 17.65   9.62  13.63 
1958 12  6.93    .47   3.69 
1959 01  9.43    .18   4.80 
1959 02 10.73   2.66   6.69 
1959 03 14.65   5.28   9.96 
1959 04 20.83  10.80  15.81 
1959 05 25.73  16.77  21.25 
1959 06 28.35  20.74  24.54 
1959 07 28.94  23.02  25.98 
1959 08 30.33  23.29  26.81 
1959 09 25.90  20.77  23.33 
1959 10 21.99  15.60  18.79 
1959 11 15.30   7.09  11.19 
1959 12 11.38   4.41   7.89 
1960 01  9.14   2.25   5.69 
1960 02  9.80   2.17   5.98 
1960 03  8.14    .50   4.32 
1960 04 22.55  12.20  17.37 
1960 05 23.13  15.75  19.43 
1960 06 27.70  20.75  24.22 
1960 07 28.73  22.08  25.40 
1960 08 30.00  22.87  26.43 
1960 09 25.88  20.40  23.14 
1960 10 20.11  14.13  17.12 
1960 11 16.32   8.28  12.29 
1960 12  7.97   -.32   3.82 
1961 01  6.24   -.81   2.71 
1961 02 11.21   2.57   6.89 
1961 03 16.12   7.35  11.74 
1961 04 17.62   9.22  13.42 
1961 05 21.56  14.21  17.88 
1961 06 26.73  18.95  22.84 
1961 07 30.78  23.01  26.89 
1961 08 29.08  22.52  25.80 
1961 09 27.46  21.24  24.34 
1961 10 20.93  13.31  17.12 
1961 11 16.04   9.39  12.71 
1961 12 10.03   2.63   6.33 
1962 01  8.89   1.21   5.05 
1962 02  9.43   1.82   5.62 
1962 03 10.87   4.73   7.80 
1962 04 19.95  10.01  14.98 
1962 05 24.52  16.79  20.66 
1962 06 27.38  19.91  23.64 
1962 07 28.42  21.26  24.84 
