1850_250b   1850_227
    0       2.21      2.24
    1       4.76      1.33
    2      -0.30     -0.41
    3       4.03      4.51
    4      -0.51     -0.69
    5       3.73      2.42
    6      -0.45     -0.56
    7       9.16      5.14
    8      -0.22     -0.30
    9       3.82      2.53
   10      -0.17     -0.21
   11       1.05      1.66
   12      85.02     85.48