1915 01   0.34 -12.09  -5.87 
1915 02   6.15  -7.09   -.47 
1915 03   8.10  -5.20   1.45 
1915 04  17.56   1.78   9.67 
1915 05  15.49   2.66   9.07 
1915 06  18.39   4.67  11.53 
1915 07  22.59   6.81  14.70 
1915 08  28.38   8.25  18.31 
1915 09  16.50   3.19   9.84 
1915 10  16.82  -0.03   8.39 
1915 11   5.59  -6.60   -.50 
1915 12   0.36  -9.29  -4.46 
1916 01 -13.06 -25.84 -19.45 
1916 02   1.17 -11.00  -4.91 
1916 03   9.50  -3.73   2.88 
1916 04  13.35  -1.55   5.90 
1916 05  14.16   -.90   6.63 
1916 06  20.06   4.61  12.33 
1916 07  28.45   8.82  18.63 
1916 08  27.08   6.54  16.81 
1916 09  21.34   0.94  11.14 
1916 10  10.43  -4.02   3.20 
1916 11   3.50  -9.89  -3.19 
1916 12  -4.44 -16.81 -10.62 
1917 01  -2.74 -15.45  -9.09 
1917 02  -1.85 -14.88  -8.36 
1917 03   -.69 -13.01  -6.85 
1917 04   8.67  -2.38   3.14 
1917 05  16.36   0.80   8.58 
1917 06  21.72   3.78  12.75 
1917 07  31.98   9.76  20.87 
1917 08  29.35   6.60  17.97 
1917 09  23.51   4.26  13.88 
1917 10  14.39  -2.39   6.00 
1917 11  10.60  -4.89   2.85 
1917 12   2.79 -10.18  -3.69 
1918 01  -1.29 -12.80  -7.04 
1918 02   0.43 -11.95  -5.76 
1918 03   9.67  -3.87   2.90 
1918 04  10.69  -2.76   3.96 
1918 05  16.28   0.77   8.52 
1918 06  27.70   8.75  18.22 
1918 07  25.81   9.25  17.52 
1918 08  25.63   7.89  16.76 
1918 09  19.76   4.83  12.29 
1918 10  15.74   1.37   8.55 
1918 11   2.83  -8.88  -3.02 
1918 12   2.10  -9.05  -3.47 
1919 01   4.32  -8.82  -2.24 
1919 02   -.36 -13.60  -6.98 
1919 03   6.38  -7.18   -.39 
1919 04  15.18  -1.02   7.08 
1919 05  20.46   2.42  11.44 
1919 06  28.63   7.47  18.04 
1919 07  32.31   9.08  20.69 
1919 08  29.98   9.25  19.61 
1919 09  21.91   4.17  13.04 
1919 10   7.62  -5.72   0.95 
1919 11   1.83  -9.45  -3.81 
1919 12  -4.44 -17.37 -10.91 
1920 01   6.00 -11.14  -2.57 
1920 02  10.18 -10.37  -0.09 
1920 03 -99.99  -9.87 -99.99 
1920 04  13.16  -4.03   4.56 
1920 05  21.43   2.90  12.16 
1920 06  24.75   5.83  15.29 
1920 07  29.24   8.64  18.94 
1920 08  28.74   7.37  18.05 
1920 09  22.82   3.02  12.92 
1920 10  11.43  -2.24   4.59 
1920 11   1.95  -9.60  -3.82 
1920 12   3.15  -8.54  -2.69 
1921 01   4.11  -9.05  -2.47 
1921 02   8.35  -8.29   0.03 
1921 03  12.06  -5.31   3.37 
1921 04  12.58  -2.71   4.93 
1921 05  17.49   3.29  10.39 
1921 06  24.96   7.68  16.32 
1921 07  28.81   9.93  19.37 
1921 08  29.32   8.29  18.80 
1921 09  18.70   2.41  10.56 
1921 10  20.21   0.70  10.46 
1921 11   7.94  -5.94   1.00 
1921 12   -.32 -10.94  -5.62 
1922 01  -1.81 -12.44  -7.12 
1922 02  -1.95 -15.58  -8.76 
1922 03   7.09  -6.33   0.38 
1922 04  13.08  -1.22   5.93 
1922 05  19.16   3.36  11.26 
1922 06  24.43   7.62  16.02 
1922 07  26.21   7.77  16.99 
1922 08  29.55   9.67  19.61 
1922 09  25.30   5.25  15.27 
1922 10  17.48   0.63   9.05 
1922 12   -.76 -11.84  -6.30 
1923 01   5.62  -7.71  -1.04 
1923 02  -1.45 -15.22  -8.33 
1923 03   8.70  -6.13   1.28 
1923 04  13.83  -1.66   6.08 
1923 05  19.29   3.64  11.46 
1923 06  23.61   7.16  15.38 
1923 07  29.85  12.42  21.13 
1923 08  30.86   8.14  19.50 
1923 09  24.57   3.04  13.80 
1923 10  13.18   -.71   6.23 
1923 11   9.33  -3.81   2.76 
1923 12   2.72  -7.63  -2.45 
1924 02   8.31  -6.15   1.08 
1924 03   4.35  -5.70   -.67 
1924 04   7.15  -4.57   1.29 
1924 06  23.85   7.82  15.83 
1924 07  30.89  12.11  21.50 
1924 08  32.77   9.33  21.05 
1924 09  25.19   2.60  13.89 
1924 10  15.91   1.50   8.70 
1925 02   5.23  -7.90  -1.33 
1925 05  18.24   3.51  10.87 
1925 07  29.17  11.75  20.45 
1925 08  27.52   7.14  17.33 
1925 09  20.32   6.31  13.31 
1925 10  11.60  -4.05   3.77 
1925 11   7.58 -10.04  -1.23 
1925 12   5.79  -8.08  -1.14 
1926 02   5.90  -6.39   -.24 
1926 03   6.05  -5.35   0.35 
1926 04  15.64   -.71   7.46 
1926 05  22.84   2.36  12.60 
1926 06  25.54   7.36  16.45 
1926 07  30.57  13.35  21.96 
1926 08  28.17   9.06  18.61 
1926 09  14.81   0.94   7.87 
1926 10  16.21   1.58   8.89 
1926 11   9.68  -1.32   4.18 
1927 06  24.64   6.44  15.54 
1927 10  14.28   3.55   8.91 
1928 02  -1.58  -9.92  -5.75 
1928 03  10.48   -.62   4.92 
1928 04  12.57  -1.77   5.39 
1928 05  21.86   5.41  13.63 
1928 06  22.42   4.73  13.58 
1928 07  29.13  10.87  20.00 
1928 08  23.81   6.93  15.37 
1928 10  14.41   2.05   8.22 
1929 04   7.66  -4.23   1.71 
1929 05  15.06   2.91   8.98 
1929 08  29.60   7.90  18.75 
1929 09  16.20  -2.36   6.91 
1929 10  14.76  -3.37   5.69 
1929 12   2.34  -8.14  -2.90 
1930 01  -8.20 -99.99 -99.99 
1930 02   3.28  -7.37  -2.04 
1930 03   -.74  -7.36  -4.05 
1930 04  13.91  -2.03   5.94 
1930 06  25.46   6.06  15.75 
1930 07  29.76 -99.99 -99.99 
1930 08  28.98  10.92  19.95 
1931 03  11.17  -2.49   4.34 
