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)              7.711           7.732          -0.022          -0.281
         dry_dep           2.157           2.153           0.005           0.216
         wet_dep           5.554           5.580          -0.026          -0.474
Lifetime (days)            5.602           5.534           0.068           1.210
Burden (Tg)                0.118           0.117           0.001           0.932
    accumulation           0.072           0.072          -0.000          -0.214
  primary_carbon           0.046           0.045           0.001           2.726