1927 11   8.71   3.36   6.03 
1927 12   4.15  -2.23   0.96 
1928 01   6.50   1.27   3.88 
1928 02   8.39   0.49   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   0.94   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   0.26   2.64 
1932 02   7.45   0.65   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   0.79   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 
