1956 04 12.35    . 1   6.18 
1956 06 26.75  12.91  19.83 
1956 07 26.47  14.82  20.64 
1956 08 27.57  14.71  21.14 
1956 09 21.31  10.05  15.68 
1956 10 18.32   4.05  11.18 
1956 11 10.96    .-6   5.45 
1956 12  6.27  -3.30   1.48 
1957 01 -1.11 -99.99 -99.99 
1957 02  5.22  -4.85    .18 
1957 03  8.52  -1.91   3.30 
1957 04 15.78   3.15   9.46 
1957 05 21.36   7.75  14.55 
1957 06 28.19  14.99  21.59 
1957 07 28.71  15.58  22.14 
1957 08 26.19  13.55  19.87 
1957 09 23.69  11.73  17.70 
1957 10 16.82   5.16  10.99 
1957 11 11.85   1.61   6.73 
1957 12  6.53  -2.28   2.12 
1958 01  1.44  -6.88  -2.72 
1958 02  -.81  -9.55  -5.18 
1958 03  6.51   -.94   2.78 
1958 04 14.64   3.00   8.82 
1958 05 18.16   6.52  12.34 
