BC
                     f.e13.F2000     f.e13.F2000      difference     rel diff(%)
Sources (Tg/yr)            7.766           7.766           0.000           0.000
        emission           7.766           7.766           0.000           0.000
Sinks (Tg/yr)              7.747           7.747           0.000           0.004
         dry_dep           2.024           2.025          -0.001          -0.027
         wet_dep           5.723           5.722           0.001           0.016
Lifetime (days)            5.350           5.370          -0.021          -0.384
Burden (Tg)                0.114           0.114          -0.000          -0.379
    accumulation           0.079           0.079          -0.000          -0.207
  primary_carbon           0.034           0.035          -0.000          -0.776