Full N_H/log l_opt 1/20 0.09 0.02 -1.4 0.7 Full N_H/log l_opt 6/ 7 0.07 0.02 -0.6 0.5 Full N_H/log l_opt 5/ 5 0.08 0.02 -0.9 0.7 Full N_H/log l_opt 1/ 5 0.11 0.03 -1.8 0.9 Full N_H/Redshift 1/17 0.11 0.01 -1.9 0.4 Full N_H/Redshift 5/ 5 0.11 0.02 -1.9 0.7 Full N_H/Redshift 1/ 4 0.15 0.01 -3.0 0.2 RQ N_H/Redshift 1/ 4 0.15 0.07 -3.1 2.3 RL N_H/Redshift 1/ 4 0.00 0.26 1.5 8.1