1931 03 14.54   1.16   7.85 
1931 04 17.96   1.97   9.96 
1931 05 21.09   5.21  13.15 
1931 06 20.75   8.52  14.63 
1931 07 24.25   9.42  16.83 
1931 08 21.93   8.25  15.09 
1931 09 18.54 -99.99 -99.99 
1931 10 16.64 -99.99 -99.99 
1932 04 14.00 -99.99 -99.99 
1932 05 18.77   3.81  11.29 
1932 06 23.45   6.92  15.18 
1932 07 24.05   7.86  15.95 
1932 08 23.95   9.62  16.78 
1932 09 22.70   5.88  14.29 
1932 10 16.91   5.03  10.97 
1932 11 11.14   2.89   7.01 
1932 12  3.60  -2.83    .38 
1933 01  3.83  -1.85    .98 
1933 02  2.94  -4.85   -.95 
1933 03  8.82   -.57   4.12 
1933 04 14.41    .61   7.51 
1933 05 16.17   3.53   9.85 
1933 06 20.92   6.16  13.54 
1933 07 24.94   8.03  16.48 
1933 08 26.65   9.76  18.20 
1933 09 19.43   6.40  12.91 
1933 10 17.67   5.20  11.43 
1933 11 11.00   3.66   7.33 
1933 12  7.48   1.42   4.44 
1934 01  8.25   1.82   5.03 
1934 02 13.61   3.81   8.71 
1934 03 16.20   3.30   9.75 
1934 04 20.68   5.80  13.24 
1934 05 21.23   8.37  14.79 
1934 06 22.95   9.87  16.41 
1934 07 24.65  10.44  17.54 
1934 08 26.40   9.85  18.12 
1934 09 21.73   7.61  14.67 
1934 10 17.69   6.17  11.93 
1934 11 11.76   5.29   8.52 
1934 12  7.28 -99.99 -99.99 
1935 01  4.54 -99.99 -99.99 
1935 02 10.76   2.24   6.50 
1935 03  7.61 -99.99 -99.99 
1935 04 15.82   2.22   9.01 
1935 05 20.68   5.22  12.95 
1935 06 22.11   9.39  15.75 
1935 07 25.31  11.78  18.54 
1935 08 24.35  10.14  17.24 
1935 09 24.13   8.95  16.53 
1935 10 15.64   5.05  10.34 
1935 11  5.80 -99.99 -99.99 
1935 12  6.93 -99.99 -99.99 
1936 01  6.29   1.09   3.69 
1936 02   .50  -5.49  -2.49 
1936 03  8.25   -.79   3.73 
1936 04 16.07   3.35   9.71 
1936 05 21.77   6.86  14.31 
1936 06 23.34   9.68  16.51 
1936 07 24.24  10.48  17.36 
1936 08 23.61  10.63  17.12 
1936 09 99.99   6.87 -99.99 
1936 10 99.99   6.12 -99.99 
1936 11 99.99   2.63 -99.99 
1936 12 99.99   1.76 -99.99 
1937 01   .74  -6.54  -2.90 
1937 02  4.23  -1.56   1.33 
1937 03 13.77   2.15   7.96 
1937 04 16.52   2.73   9.62 
1937 05 23.45   6.26  14.85 
1937 06 25.50  10.02  17.76 
1937 07 24.75  10.54  17.64 
1937 08 22.63   9.00  15.81 
1937 09 22.20   8.60  15.40 
1937 10 16.70   7.81  12.25 
1937 11  9.25   4.48   6.86 
1937 12  4.82   1.36   3.09 
1938 01  4.78    .54   2.66 
1938 02  6.45   1.16   3.81 
1938 03  8.39    .96   4.67 
1938 04 13.72   3.54   8.63 
1938 05 17.64   4.69  11.17 
1938 06 21.51   8.70  15.10 
1938 07 24.32  11.15  17.73 
1938 09 21.27   9.22  15.24 
1938 10 15.60 -99.99 -99.99 
1938 11  6.52   2.02   4.27 
1938 12  5.24   1.57   3.40 
1939 01  5.80   2.10   3.95 
1939 02  3.44  -1.63    .90 
1939 03  8.52    .30   4.41 
1939 04 14.69   4.08   9.38 
1939 05 17.68   5.85  11.76 
1939 06 16.79   7.80  12.29 
1939 07 22.88   9.82  16.34 
1939 08 24.32   9.80  17.06 
1939 09 19.32   7.76  13.54 
1939 10 14.11   6.22  10.16 
1939 11 10.87   5.07   7.97 
1939 12  7.53   3.62   5.57 
1940 02  7.03   2.22   4.62 
1940 03 11.11   2.94   7.02 
1940 04 13.69   4.84   9.26 
1940 05 19.89   6.42  13.15 
1940 06 21.77  10.14  15.95 
1940 07 23.09 -99.99 -99.99 
1940 08 22.79   9.89  16.34 
1940 09 20.41   9.92  15.16 
1940 10 14.97   8.09  11.53 
1940 11  6.19   1.71   3.95 
1941 01  6.13   2.49   4.31 
1941 02 10.04   3.42   6.73 
1941 03 14.23   4.34   9.28 
1941 04 15.37   3.90   9.63 
1941 05 16.24   6.61  11.42 
1941 06 19.35   8.71  14.03 
1941 07 25.12  12.63  18.87 
1941 08 23.50  10.63  17.06 
