297_4xCO2   297_4xCO2_to_PI_yr200
    0       1.63      0.95
    1       6.99     33.24
    2       1.07     -0.17
    3      16.81     41.33
    4       1.00     -0.19
    5      15.00     39.16
    6       0.87     -0.30
    7      17.81     35.06
    8       1.22     -0.13
    9      18.66     39.91
   10       1.24     -0.07
   11      14.67     41.66
   12       7.93      9.42