1850_263d   1850_262c
    0       5.17      5.17
    1       9.73      8.73
    2       0.86      0.82
    3       2.92      2.21
    4       2.86      2.74
    5       2.43      2.31
    6       1.64      1.61
    7       2.84      2.07
    8       1.73      1.71
    9       0.95      1.19
   10      -0.64     -0.61
   11       2.13      1.64
   12      19.81     19.27