1931 04 23.43  15.38  19.40 
1931 05 24.36  16.58  20.47 
1931 06 25.41  17.93  21.67 
1931 07 25.61  17.32  21.46 
1931 08 26.41  18.26  22.33 
1931 09 26.51  17.70  22.10 
1931 10 26.53  17.85  22.19 
1931 11 25.15  15.46  20.30 
1931 12 23.85  13.82  18.83 
1932 01 24.35  14.87  19.61 
1932 02 23.81  14.92  19.36 
1932 03 24.04  14.75  19.39 
1932 04 23.69  15.37  19.53 
1932 05 23.98  15.82  19.90 
1932 06 24.38  15.88  20.12 
1932 07 24.70  16.70  20.70 
1932 08 25.25  16.67  20.96 
1932 09 25.62  16.37  21.00 
1932 10 25.16  16.16  20.66 
1932 11 24.93  15.92  20.42 
1932 12 23.94  14.26  19.10 
1933 01 23.24  13.63  18.43 
1933 02 23.49  13.57  18.52 
1933 03 23.10  13.24  18.17 
1933 04 23.32  14.05  18.68 
1933 05 23.52  15.32  19.42 
1933 06 23.03  15.66  19.34 
1933 07 24.13  15.85  19.99 
1933 08 24.42  15.35  19.88 
1933 09 24.90  15.67  20.28 
1933 10 25.13  15.09  20.11 
1933 11 25.08  14.10  19.59 
1933 12 25.20  14.43  19.81 
1934 01 24.25  13.71  18.98 
1934 02 24.44  12.97  18.70 
1934 03 24.29  13.29  18.79 
1934 04 24.43  13.87  19.15 
1934 05 24.70  15.35  20.02 
1934 06 25.21  16.28  20.74 
1934 07 26.18  16.74  21.46 
1934 08 26.25  17.31  21.78 
1934 09 26.44  16.46  21.45 
1934 10 26.50  16.31  21.40 
1934 11 26.26  15.28  20.77 
1934 12 25.28  14.28  19.78 
1935 01 24.31  12.83  18.57 
1935 02 24.52  12.68  18.60 
1935 03 23.98  13.71  18.84 
1935 04 23.90  13.59  18.74 
1935 05 24.82  15.09  19.95 
1935 06 24.86  15.95  20.40 
1935 07 25.58  16.58  21.08 
1935 08 26.31  15.63  20.97 
1935 09 26.63  16.32  21.47 
1935 10 26.21  16.32  21.26 
1935 11 26.38  14.63  20.50 
1935 12 25.77  13.74  19.75 
1936 01 25.10  12.74  18.92 
1936 02 24.31  12.24  18.27 
1936 03 24.14  13.42  18.77 
1936 04 24.85  14.12  19.48 
1936 05 24.55  14.67  19.61 
1936 06 26.25  14.89  20.57 
1936 07 26.06  15.70  20.88 
1936 08 26.91  16.19  21.55 
1936 09 27.34  15.79  21.56 
1936 10 27.15  15.39  21.27 
1936 11 26.43  14.07  20.25 
1936 12 24.65  12.45  18.54 
1937 01 24.81  12.19  18.50 
1937 06 25.59  14.98  20.28 
1937 08 26.52  16.07  21.29 
1937 09 26.69  14.70  20.69 
1937 10 26.89  14.76  20.82 
1937 11 26.25  13.47  19.86 
1937 12 24.52  13.26  18.89 
1938 01 24.27  12.90  18.58 
1938 03 23.91  13.41  18.66 
1938 04 24.00  14.01  19.00 
1938 05 24.11  14.57  19.34 
1938 06 24.27  14.74  19.50 
1938 07 24.70  14.99  19.84 
1938 08 23.10  15.97  19.53 
1938 10 25.70  17.21  21.46 
1938 11 24.93  15.66  20.29 
1938 12 25.09  14.62  19.85 
