Intrinsic absorbed fractions for Compton-thin sources with ﹩\mathrm{log}({N}_{{\rm{H}}}/{\mathrm{cm}}^{-2})\gt 22﹩ as a function of unabsorbed 10–40 keV luminosity. The relative median redshift from the objects contributing to each bin is highlighted with a bluer, larger dot representing local, lower luminosity sources, and redder, smaller ones showing objects at greater distances and luminosities. Green data are fractions reported by Ueda et al. (2014) for ﹩z=0.1\mbox{--}1﹩ sources. Hatched orange indicates the region determined by Buchner et al. (2015) for ﹩z=0.5\mbox{--}0.75﹩ AGN. Short- and long-dashed lines represent the G07 and Akylas et al. (2012) CXB synthesis model predictions, as indicated. Gray shaded regions relative to our two data points give an indication of the robustness of the absorbed fraction (see Section 7.1 for details).