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)              7.744           7.747          -0.003          -0.039
         dry_dep           2.016           2.025          -0.009          -0.435
         wet_dep           5.728           5.722           0.006           0.101
Lifetime (days)            5.384           5.370           0.014           0.251
Burden (Tg)                0.114           0.114           0.000           0.212
    accumulation           0.079           0.079          -0.001          -0.714
  primary_carbon           0.035           0.035           0.001           2.286