1928 10 15.47  -5.39   5.04 
1928 11  5.93 -11.45  -2.76 
1928 12   .79 -19.54  -9.37 
1929 01 -4.14 -21.84 -12.99 
1929 02 -2.96 -17.93 -10.44 
1929 03  5.89  -9.18  -1.64 
1929 04  9.20  -5.26   1.96 
1929 05 15.97  -3.01   6.48 
1929 06 20.92   2.51  11.71 
1929 07 27.68   2.27  14.97 
1929 08 29.65   4.28  16.96 
1929 09 17.68  -2.38   7.65 
1929 10 18.41  -6.05   6.18 
1929 11  4.69 -12.73  -4.01 
1929 12  4.23 -10.79  -3.27 
1930 01 -8.96 -26.31 -17.63 
1930 02  4.71  -9.56  -2.42 
1930 03  6.68  -9.41  -1.36 
1930 04 17.32  -2.72   7.30 
1930 05 17.17    .-9   8.54 
1930 06 22.87    .76  11.81 
1930 07 28.40   5.46  16.93 
1930 08 26.65   7.21  16.93 
1930 09 22.78    .84  11.81 
1930 10 12.37  -4.54   3.91 
1930 11  6.41 -14.78  -4.18 
1930 12 -1.49 -18.56 -10.02 
1931 01   .43 -15.91  -7.74 
1931 02  2.47 -15.19  -6.35 
1931 03  7.43  -8.81   -.69 
1931 04 13.51  -5.48   4.01 
1931 05 18.93   -.40   9.26 
1931 06 23.95   3.62  13.78 
1931 07 29.87   4.76  17.31 
1931 08 25.71   2.81  14.25 
