BC
                     f.e13.F2000     f.e13.F2000      difference     rel diff(%)
Sources (Tg/yr)            8.266           8.266           0.000           0.000
        emission           8.266           8.266           0.000           0.000
Sinks (Tg/yr)              7.946           7.974          -0.029          -0.361
         dry_dep           2.045           2.075          -0.030          -1.478
         wet_dep           5.901           5.899           0.002           0.026
Lifetime (days)            5.568           5.577          -0.010          -0.175
Burden (Tg)                0.121           0.122          -0.001          -0.537
    accumulation           0.092           0.093          -0.001          -1.424
  primary_carbon           0.029           0.028           0.001           2.277