1850_237   1850_227
    0       2.16      2.25
    1      13.50      6.09
    2      -0.04     -0.45
    3      19.61     14.44
    4      -0.33     -0.78
    5      12.39      2.30
    6      -0.17     -0.61
    7      15.94      8.43
    8      -0.02     -0.30
    9       9.02      6.64
   10       0.19     -0.25
   11      11.57     16.68
   12      85.69     85.14