BC
                     b.e13.B1850     f.e13.F2000      difference     rel diff(%)
Sources (Tg/yr)            2.901           7.794          -4.893        -168.676
        emission           2.901           7.794          -4.893        -168.676
Sinks (Tg/yr)              2.926           7.711          -4.784        -163.495
         dry_dep           0.951           2.157          -1.206        -126.860
         wet_dep           1.975           5.554          -3.578        -181.130
Lifetime (days)            7.289           5.602           1.687          23.144
Burden (Tg)                0.058           0.118          -0.060        -102.511
    accumulation           0.028           0.072          -0.044        -153.204
  primary_carbon           0.030           0.046          -0.016         -54.324