NCL
                     f.e13.F2000     f.e13.F2000      difference     rel diff(%)
Sources (Tg/yr)         6104.542        5859.149         245.393           4.020
        emission        6104.542        5859.149         245.393           4.020
Sinks (Tg/yr)           6099.237        5850.314         248.923           4.081
         dry_dep        1739.577        1767.428         -27.851          -1.601
         wet_dep        4359.660        4082.887         276.773           6.349
Lifetime (days)            1.202           1.122           0.079           6.606
Burden (Tg)               20.082          17.990           2.092          10.418
    accumulation           0.678           0.892          -0.215         -31.662
          Aitken           0.003           0.002           0.000           5.179
          coarse          19.402          17.096           2.306          11.886