Cumulative distribution function for ρ_fil for three different absorber samples. The measured absorbers in the COS data are indicated in blue, the random sample with its own statistics is plotted in dashed green, the random sample with the L07 statistics is indicated in dotted black, and the random sample from Danforth et al. (2016) is added in dashed magenta (D16). The distribution for the galaxies is shown in red.