Histograms containing the averaged best-fit properties of all sources in the sample, grouped by variability class. All models providing the plotted parameter are shown (MYTorus in blue, borus02 in orange, UXCLUMPY in red). Source properties are as follows: Top left, time average of all N_H, los (i.e. average value of the obscurer column density) for each single source. Top right,N_H, av (i.e. column density of the reflector) considered constant with time. Middle left, absolute value of the difference between the two properties plotted above. Middle right, cosine of the inclination angle, θ_Obs. Bottom left, covering factor of the torus. Bottom right, dispersion of the torus cloud distribution.