1928 08 16.65   7.81  12.23 
1928 09 13.70   4.09   8.89 
1928 10  9.66   2.22   5.94 
1928 11  4.77  -2.26   1.25 
1928 12  2.86 -99.99 -99.99 
1929 01  4.81  -1.52   1.64 
1929 02  5.16   -.50   2.33 
1929 03  2.75  -5.41  -1.33 
1929 04  5.91  -1.33   2.29 
1929 05  9.10   1.94   5.52 
1929 06 11.47   6.01   8.74 
1929 07 16.79   7.32  12.06 
1929 08 16.37   7.63  12.00 
1929 09 14.03   7.51  10.77 
1929 10  8.93   2.44   5.68 
1929 11  6.09   -.32   2.88 
1929 12  3.21  -5.71  -1.25 
1930 01  3.99  -1.78   1.10 
1930 02 -2.16 -10.59  -6.37 
1930 03  1.55  -4.87  -1.66 
1930 04  4.25  -2.04   1.10 
1930 05  6.53   1.36   3.94 
1930 06 11.30   4.41   7.85 
1930 07 13.14   7.69  10.41 
1930 08 15.99   8.24  12.11 
1930 09 12.48   3.60   8.04 
1930 10  8.50   -.11   4.19 
1930 11  4.32  -3.87    .22 
1930 12  3.51  -2.93    .28 
1931 01  3.43  -2.23    .60 
1931 03  3.54  -3.78   -.12 
1931 04  5.83  -1.77   2.03 
1931 05  9.27   1.85   5.56 
