(a) Luminosity density as a function of redshift and AGN type, based on the luminosity evolution models of Table 1, (b) the black hole mass density as a function of the mean radiative efficiency of the black holes, η, using the luminosity evolution model for all AGNs, and (c) cumulative black hole mass density as a function of redshift and AGN type (assuming our best-fit value of ﹩\eta =0.18﹩). In all plots, the luminosity function has been extrapolated a factor of three below the survey limit at a given redshift. The cyan curves in plots (a) and (c) show the bolometric luminosity function of H07, and the magenta curve in (c) shows the fixed faint end model from this paper. The magenta stripe in (b) and (c) indicates the range of the local black hole mass density value estimated by Graham & Driver (2007).