1850_215_4xCO2   1850_215
    0       1.37      1.17
    1       6.66     19.14
    2       0.40      0.26
    3      11.77     32.22
    4       0.64      0.43
    5       6.64     33.02
    6       0.46      0.35
    7       6.60     26.25
    8       0.10      0.09
    9      11.65     19.05
   10       0.38      0.18
   11       9.32     29.02
   12      33.35     50.03