POM
                              PD              PI      difference     rel diff(%)
Sources (Tg/yr)           46.311          26.388          19.924          43.021
        emission          46.311          26.388          19.924          43.021
Sinks (Tg/yr)             45.010          26.588          18.421          40.927
         dry_dep          10.410           7.190           3.219          30.927
         wet_dep          34.600          19.398          15.202          43.936
Lifetime (days)            9.524           9.443           0.081           0.849
Burden (Tg)                1.174           0.688           0.487          41.429
    accumulation           0.794           0.406           0.389          48.926
  primary_carbon           0.380           0.282           0.098          25.771