Relation between the column density of the torus-like reflector (in log) vs. the Eddington ratio, λ_Edd = L_bol/L_Edd, for the sample of this work. The pink points and light yellow stars are the data point of the best fit model of this work (borus02) and the one obtained by Esparza-Arredondo et al. (2021). The blue points represented the binned data point for a bin size equal to 0.5. The black solid line represents the best fit and the light blue zone the 3σ confidence level.