BC
                     f.e13.F2000     f.e13.F2000      difference     rel diff(%)
Sources (Tg/yr)            7.794           7.794          -0.000          -0.000
        emission           7.794           7.794          -0.000          -0.000
Sinks (Tg/yr)              7.732           7.726           0.007           0.089
         dry_dep           2.153           2.154          -0.001          -0.059
         wet_dep           5.580           5.572           0.008           0.145
Lifetime (days)            5.534           5.562          -0.028          -0.509
Burden (Tg)                0.117           0.118          -0.000          -0.420
    accumulation           0.072           0.072           0.000           0.624
  primary_carbon           0.045           0.046          -0.001          -2.106