1pctCO2   piControl
    0       4.51      4.76
    1      18.94     17.27
    2      -0.68      0.34
    3      14.25     27.32
    4       1.03      2.52
    5      25.54     15.90
    6      -0.11      1.14
    7      19.05     18.11
    8       0.74      1.26
    9      13.00     10.93
   10      -2.00     -1.14
   11       7.83     26.11
   12      18.56     21.07