1912 01 99.99 -99.99  20.50 
1912 02 99.99 -99.99  23.70 
1912 03 99.99 -99.99  19.50 
1912 04 99.99 -99.99  12.70 
1912 05 99.99 -99.99   8.39 
1912 06 99.99 -99.99   7.50 
1912 07 99.99 -99.99   7.50 
1912 08 99.99 -99.99   8.00 
1912 09 99.99 -99.99  10.40 
1912 10 99.99 -99.99  12.60 
1912 11 99.99 -99.99  15.90 
1912 12 99.99 -99.99  19.29 
1913 01 99.99 -99.99  20.80 
1913 02 99.99 -99.99  21.50 
1913 03 99.99 -99.99  17.20 
1913 04 99.99 -99.99  13.90 
1913 05 99.99 -99.99   8.50 
1913 06 99.99 -99.99   6.00 
1913 07 99.99 -99.99   6.60 
1913 08 99.99 -99.99   7.00 
1913 09 99.99 -99.99  10.00 
1913 10 99.99 -99.99  14.10 
1913 11 99.99 -99.99  14.50 
1913 12 99.99 -99.99  20.29 
1914 01 99.99 -99.99  21.20 
1914 02 99.99 -99.99  23.10 
1914 03 99.99 -99.99  19.90 
1914 04 99.99 -99.99  13.20 
1914 05 99.99 -99.99  10.00 
1914 06 99.99 -99.99   5.50 
1914 07 99.99 -99.99   6.20 
1914 08 99.99 -99.99   7.40 
1914 09 99.99 -99.99  10.70 
1914 10 99.99 -99.99  15.50 
1914 11 99.99 -99.99  22.10 
1914 12 99.99 -99.99  22.90 
1915 01 99.99 -99.99  21.00 
1915 02 99.99 -99.99  23.60 
1915 03 99.99 -99.99  19.10 
1915 04 99.99 -99.99  14.40 
1915 05 99.99 -99.99   9.70 
1915 06 99.99 -99.99   7.30 
1915 07 99.99 -99.99   7.60 
1915 08 99.99 -99.99   8.89 
1915 09 99.99 -99.99  11.00 
1915 10 99.99 -99.99  12.20 
1915 11 99.99 -99.99  14.40 
1915 12 99.99 -99.99  19.50 
1916 01 99.99 -99.99  22.20 
1916 02 99.99 -99.99  19.29 
1916 03 99.99 -99.99  14.10 
1916 04 99.99 -99.99  10.90 
1916 05 99.99 -99.99   8.30 
1916 06 99.99 -99.99   8.10 
1916 07 99.99 -99.99   6.60 
1916 08 99.99 -99.99   8.00 
1916 09 99.99 -99.99  12.00 
1916 10 99.99 -99.99  12.60 
1916 11 99.99 -99.99  14.40 
1916 12 99.99 -99.99  19.20 
1917 01 99.99 -99.99  21.40 
1917 02 99.99 -99.99  19.00 
1917 03 99.99 -99.99  17.20 
1917 04 99.99 -99.99  10.30 
1917 05 99.99 -99.99   8.80 
1917 06 99.99 -99.99   6.80 
1917 07 99.99 -99.99   7.00 
1917 08 99.99 -99.99   7.60 
1917 09 99.99 -99.99  11.30 
1917 10 99.99 -99.99  13.40 
1917 11 99.99 -99.99  15.80 
1917 12 99.99 -99.99  20.50 
1918 01 99.99 -99.99  21.70 
1918 02 99.99 -99.99  21.00 
1918 03 99.99 -99.99  18.40 
