1850_250   1850_227
    0       2.20      2.29
    1      18.21     10.17
    2       0.04     -0.61
    3      25.91     19.71
    4      -0.31     -1.04
    5      13.66     11.28
    6      -0.08     -0.79
    7      23.52     12.01
    8       0.11     -0.35
    9      19.30     15.65
   10       0.28     -0.39
   11      17.94     22.50
   12      84.55     84.53