1850_221   1850_215
    0       1.47      1.44
    1       0.43      0.37
    2      -0.50     -0.54
    3       0.41      0.57
    4      -0.32     -0.34
    5       0.41      0.94
    6      -0.48     -0.54
    7       0.59      0.95
    8      -0.69     -0.76
    9       1.90      2.54
   10      -0.51     -0.52
   11       0.41      1.03
   12      42.23     42.72