1918 04  11.76  -5.16   3.30 
1918 05  13.18  -1.13   6.02 
1918 06  18.66   5.80  12.23 
1918 07  21.15   5.43  13.29 
1918 08  20.90   5.51  13.20 
1918 09  16.71   0.13   8.42 
1918 10  11.13  -6.22   2.45 
1918 11   2.17 -13.41  -5.62 
1918 12  -4.11 -16.33 -10.22 
1919 01  -2.11 -16.92  -9.52 
1919 02 -11.66 -24.89 -18.27 
1919 03  -5.64 -20.43 -13.03 
1919 04  13.30  -2.40   5.45 
1919 05  17.29   0.71   9.00 
1919 06  21.38   3.47  12.42 
1919 07  22.44   6.70  14.57 
1919 08  21.71   7.22  14.46 
1919 09  16.89   1.32   9.10 
1919 10   2.50 -12.12  -4.81 
1919 11  -7.63 -20.34 -13.98 
1919 12  -9.72 -22.56 -16.14 
1920 01 -14.13 -27.91 -21.02 
1920 02  -2.33 -18.81 -10.57 
1920 03  -3.03 -16.82  -9.92 
1920 04   0.50 -10.77  -5.13 
1920 05  14.72   1.70   8.21 
1920 06  17.27   5.18  11.22 
1920 07  23.42   8.43  15.93 
1920 08  21.31   5.73  13.52 
1920 09  15.91   0.10   8.00 
1920 10   9.59  -4.07   2.76 
1920 11   0.58 -10.40  -4.90 
1920 12  -8.43 -18.75 -13.59 
1921 01  -9.82 -24.30 -17.06 
1921 02  -4.73 -19.99 -12.36 
1921 03  -3.35 -18.29 -10.82 
1921 04   9.04  -3.75   2.64 
1921 05  15.49   0.21   7.85 
1921 06  21.50   5.86  13.68 
1921 07  21.88   7.76  14.82 
1921 08  20.27   4.19  12.23 
1921 10  13.88  -4.13   4.87 
1921 11  -4.92 -14.50  -9.71 
1921 12  -5.93 -19.99 -12.96 
1922 01  -8.50 -22.76 -15.63 
1922 02 -13.65 -29.50 -21.57 
1922 03  -1.70 -17.52  -9.61 
1922 04   9.27  -4.31   2.48 
1922 06  20.64   3.84  12.24 
1922 07  23.14   4.69  13.92 
1922 08  22.78   5.69  14.23 
1922 09  18.77   -.92   8.92 
1922 10  11.11  -4.88   3.11 
1922 11   1.91 -11.45  -4.77 
1922 12 -12.00 -21.54 -16.77 
1923 01 -11.70 -24.13 -17.91 
1923 02  -7.81 -23.68 -15.74 
1923 03  -4.17 -19.62 -11.90 
1923 05  15.96  -1.15   7.40 
1923 06  20.10   8.57  14.33 
1923 11   5.80  -9.63  -1.91 
1924 01 -11.45 -26.00 -18.72 
1924 02  -2.16 -15.82  -8.99 
1924 03   -.52 -13.37  -6.95 
1924 04   6.99  -7.53   -.27 
1924 05  16.53   -.28   8.12 
1924 07  23.32   7.28  15.30 
1924 08  19.70   5.26  12.48 
1924 09  16.21   0.69   8.45 
1924 10  12.80  -3.14   4.83 
1924 11   -.30 -11.75  -6.02 
1925 01 -11.15 -25.38 -18.26 
1925 02 -10.52 -23.63 -17.07 
1925 04  11.40  -2.24   4.58 
1925 05  17.53   1.36   9.44 
1925 06  20.12   4.44  12.28 
1925 07  24.08   6.78  15.43 
1926 11  -5.16 -15.56 -10.36 
1926 12  -9.07 -22.28 -15.67 
1927 01 -10.63 -24.48 -17.55 
1927 02  -8.09 -25.73 -16.91 
1927 04   5.61  -7.13   -.76 
1927 05  19.41   2.72  11.06 
1929 12  -9.43 -23.74 -16.58 
1930 01 -15.95 -27.16 -21.55 
1930 02  -1.51 -17.52  -9.51 
1930 03   1.93 -13.02  -5.54 
1931 02   4.71 -10.51  -2.89 
