POM
                              PD              PI      difference     rel diff(%)
Sources (Tg/yr)           50.324          31.674          18.650          37.059
        emission          50.324          31.674          18.650          37.059
Sinks (Tg/yr)             49.964          31.502          18.461          36.950
         dry_dep          11.783           8.378           3.405          28.896
         wet_dep          38.180          23.124          15.056          39.435
Lifetime (days)            9.264           9.275          -0.010          -0.109
Burden (Tg)                1.268           0.800           0.468          36.881
    accumulation           0.876           0.514           0.362          41.339
  primary_carbon           0.392           0.286           0.105          26.912