1955 11  -2.40 -15.11  -8.75 
1955 12  -1.79 -12.19  -6.99 
1956 01  -1.60 -10.49  -6.04 
1956 02  -3.15 -14.07  -8.60 
1956 03   1.80  -9.14  -3.67 
1956 04  12.13  -2.17   4.98 
1956 05  19.16   2.99  11.07 
1956 06  17.69   3.28  10.48 
1956 07  25.35   8.85  17.10 
1956 08  24.25   7.58  15.91 
1956 09  19.48   1.35  10.41 
1956 11   2.32  -7.24  -2.46 
1956 12  -2.19 -10.10  -6.14 
1957 01  -7.51 -18.82 -13.16 
1957 02   0.19 -11.39  -5.60 
1957 03   5.16  -4.94   0.10 
1957 04  11.37   -.32   5.52 
1957 05  19.12   4.62  11.87 
1957 06  20.58   3.98  12.28 
1957 07  22.45   5.34  13.89 
1957 08  20.96   5.16  13.06 
1957 09  22.52   3.07  12.79 
1957 11   3.61  -6.41  -1.40 
1957 12   0.42  -9.09  -4.33 
1958 01   0.31  -9.06  -4.37 
1958 02   3.21  -5.14   -.96 
1958 03   3.98  -8.46  -2.24 
1958 04   8.31  -2.48   2.91 
1958 05  21.33   2.52  11.92 
1958 06  24.27   6.46  15.36 
1958 08  26.78   5.64  16.21 
1958 11   0.92  -8.07  -3.57 
1958 12   -.68  -9.17  -4.92 
1959 01  -4.04 -14.60  -9.32 
1959 02  -1.52 -12.53  -7.02 
1959 03   3.24  -9.45  -3.10 
1959 04   7.72  -5.26   1.22 
1959 05  16.67   2.83   9.75 
1959 06  21.64   3.46  12.54 
