CLM45_halfco2   CLM40_halfco2
    0      14.80     15.98
    1      20.75     14.56
    2      -1.51      6.48
    3      25.12     17.72
    4      -1.21      6.83
    5      13.92     12.69
    6      -1.79      6.25
    7      21.63     17.53
    8      -2.10      6.17
    9      28.41     25.41
   10      -1.13      6.42
   11      18.15     15.64
   12      60.54     63.17