1918 01 99.99 -18.12 -99.99 
1918 02 -5.67 -18.62 -12.15 
1918 03 -4.69 -19.12 -11.91 
1918 04  4.58  -7.10  -1.26 
1918 05 13.76  -1.25   6.25 
1918 06 19.83   3.53  11.68 
1918 07 23.99   8.32  16.15 
1918 08 16.08   6.12  11.10 
1918 09 11.42   3.06   7.24 
1918 10  4.85  -3.35    .75 
1918 11 -4.21 -14.26  -9.24 
1918 12 -6.07 -15.95 -11.01 
1919 01 -9.71 -21.04 -15.37 
1919 02 -2.07 -15.09  -8.58 
1919 03  -.63 -14.12  -7.37 
1919 04  8.85  -4.51   2.17 
1919 05 14.82    .49   7.65 
1919 06 17.43   4.85  11.14 
1919 07 19.62   8.07  13.84 
1919 08 16.50   6.45  11.47 
1919 09 10.97   2.33   6.65 
1919 10  2.57  -5.45  -1.44 
1919 11 -4.48 -14.40  -9.43 
1919 12 -8.34 -19.14 -13.74 
1920 01 11.66 -24.62 -18.14 
1920 02 -1.87 -10.99  -6.43 
1920 03 -6.04 -20.09 -13.06 
1920 04  2.10 -15.26  -6.57 
1920 05 11.31  -3.54   3.88 
1920 06 19.70   1.83  10.77 
1920 07 19.96 -99.99 -99.99 
1920 08 99.99   7.55 -99.99 
1920 09 99.99    .18 -99.99 
1920 10  6.06  -5.09    .48 
1920 11 -2.41 -12.13  -7.27 
1920 12 -6.18 -13.12  -9.64 
