1850_265_4xCO2_fix   1850_265
    0       2.39      1.50
    1       6.40     36.52
    2       1.29     -0.49
    3      15.35     42.63
    4       0.94     -0.30
    5       8.41     25.63
    6       1.40     -0.47
    7      13.55     43.32
    8       1.80     -0.69
    9      18.74     42.26
   10       1.00     -0.50
   11      12.98     34.21
   12      37.66     41.38