1850_125_4XCO2   1850_125
    0       5.44      2.18
    1       7.10     88.37
    2       4.99     -0.06
    3       7.51     91.18
    4       5.62      0.01
    5      12.88     85.79
    6       4.71     -0.25
    7      10.20     88.50
    8       4.67     -0.29
    9      10.29     88.40
   10       4.80      0.13
   11       9.27     89.42
   12      83.50     86.10