1927 11  8.71   3.36   6.03 
1927 12  4.15  -2.23    .96 
1928 01  6.50   1.27   3.88 
1928 02  8.39    .49   4.44 
1928 03 11.06   3.43   7.24 
1928 04 13.25   4.73   8.99 
1928 05 19.95   8.95  14.45 
1928 06 20.84  11.95  16.39 
1928 07 24.17  12.60  18.38 
1928 08 22.80  11.56  17.18 
1928 09 20.21  10.63  15.42 
1928 10 13.37   6.20   9.78 
1928 11 10.34   4.57   7.45 
1928 12  7.06    .94   4.00 
1929 01  2.99  -3.60   -.30 
1929 02  6.00  -3.23   1.38 
1929 03 10.48   3.16   6.82 
1929 04 12.94   3.71   8.32 
1929 05 18.66   6.83  12.74 
1929 06 20.99 -99.99 -99.99 
1929 07 24.10 -99.99 -99.99 
1929 08 24.45 -99.99 -99.99 
1929 09 21.14 -99.99 -99.99 
1929 10 15.95 -99.99 -99.99 
1929 11  9.37 -99.99 -99.99 
1929 12  6.57 -99.99 -99.99 
1930 01  2.86  -5.63  -1.38 
1930 02  9.47   2.09   5.79 
1930 03 11.06 -99.99 -99.99 
1930 04 15.70 -99.99 -99.99 
1930 05 17.51 -99.99 -99.99 
1930 06 20.70 -99.99 -99.99 
1930 07 24.46  12.17  18.31 
1930 08 25.23  12.68  18.95 
1930 09 20.26  10.55  15.40 
1930 10 12.77   4.84   8.80 
1930 11  8.97   3.23   6.10 
1930 12  8.80   3.03   5.91 
1931 01  8.62   3.77   6.19 
1931 02  9.00   1.76   5.38 
1931 03 10.75   4.32   7.53 
1931 04 15.60   6.35  10.97 
1931 05 19.91   9.45  14.68 
1931 06 20.46  11.34  15.90 
1931 07 24.81  12.49  18.65 
1931 08 24.01  11.50  17.75 
1931 09 17.98  10.54  14.26 
1931 10 14.81   6.33  10.57 
1931 11  8.31   1.76   5.03 
1931 12  7.03   2.09   4.56 
1932 01  5.02    .26   2.64 
1932 02  7.45    .65   4.04 
1932 03 10.13   3.86   6.99 
1932 04 13.92   5.61   9.76 
1932 05 18.19   7.72  12.95 
1932 06 22.49  10.92  16.70 
1932 07 20.63  11.93  16.27 
1932 08 22.60  12.96  17.78 
1932 09 19.37   9.09  14.23 
1932 10 14.90   7.67  11.28 
1932 11 10.51   5.47   7.99 
1932 12  5.80   -.87   2.46 
1933 01  5.50    .79   3.14 
1933 02  4.89  -1.52   1.68 
1933 03  9.87   2.61   6.24 
1933 04 14.78   3.66   9.22 
1933 05 15.09   7.26  11.17 
1933 06 19.95   9.38  14.66 
1933 07 22.69  11.94  17.31 
1933 08 24.44  13.65  19.04 
1933 09 17.74   9.84  13.79 
1933 10 14.19   6.76  10.47 
1933 11  9.70   4.73   7.22 
1933 12  7.14 -99.99 -99.99 
1934 01  8.55   2.65   5.60 
1934 02 10.34   1.52   5.93 
1934 03 12.90   3.96   8.43 
1934 04 17.85   7.36  12.60 
1934 05 19.32   8.77  14.04 
1934 06 22.54  11.11  16.82 
1934 07 22.23  12.18  17.20 
1934 08 23.56  12.58  18.07 
1934 09 18.54   9.85  14.20 
1934 10 15.05   7.37  11.21 
1934 11 10.96   6.37   8.66 
1934 12  6.75   2.16   4.45 
1935 01  5.48   -.34   2.57 
1935 02  8.99   2.15   5.57 
1935 03  8.53   1.56   5.04 
1935 04 13.50   2.63   8.06 
1935 05 18.65   6.36  12.50 
1935 06 21.45  10.51  15.98 
1935 07 22.91  12.45  17.68 
1935 08 22.65  12.52  17.58 
1935 09 20.76   9.83  15.29 
1935 10 13.34   5.75   9.54 
1935 11  8.62   2.35   5.49 
1935 12  8.68   4.03   6.35 
1936 01  7.42   1.87   4.64 
1936 02  2.69  -4.79  -1.04 
1936 03  8.25   1.86   5.05 
1936 04 14.32   5.92  10.12 
1936 05 18.26   9.72  13.99 
1936 06 21.85  11.77  16.81 
1936 07 23.93  12.74  18.33 
1936 08 24.58  13.03  18.80 
1936 09 17.59   9.26  13.42 
1936 10 14.57   7.93  11.25 
