1850_227   1850_215
    0       2.16      2.24
    1      10.06      5.65
    2      -0.16     -0.45
    3      14.47     12.45
    4      -0.44     -0.88
    5      13.30      8.28
    6      -0.29     -0.56
    7       9.26      5.69
    8      -0.09     -0.27
    9       9.09      7.47
   10       0.04     -0.24
   11       8.91      7.05
   12      84.85     84.64