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)              7.721           7.729          -0.008          -0.104
         dry_dep           2.160           2.021           0.139           6.422
         wet_dep           5.561           5.707          -0.147          -2.639
Lifetime (days)            5.600           5.388           0.213           3.801
Burden (Tg)                0.118           0.114           0.004           3.701
    accumulation           0.072           0.073          -0.000          -0.369
  primary_carbon           0.046           0.041           0.005          10.074