1850_256b   1850_227
    0       2.16      2.16
    1       4.98      3.97
    2       0.14     -0.20
    3       7.61     10.86
    4      -0.15     -0.49
    5       3.68      2.28
    6      -0.03     -0.36
    7       6.43      4.26
    8       0.17     -0.11
    9       5.55      5.38
   10       0.37     -0.01
   11       4.90      8.24
   12      85.00     85.14