CLM5_halfco2   CLM45_halfco2
    0       1.35      1.45
    1      10.12      1.66
    2       0.16     -0.17
    3      14.06      5.72
    4      -0.24     -0.72
    5      13.53      4.48
    6       0.09     -0.18
    7       5.09      2.45
    8       0.46      0.24
    9       4.60      4.10
   10       0.16     -0.17
   11      10.86      4.06
   12      94.20     93.71