Number density counts in the m_H magnitude. Galaxies and AGN from the MAMBO lightcone are represented by filled green and blue histograms, respectively. AGN selected with L_X > 10⁴² erg s⁻¹ are shown with a dotted cyan line. We also show the density counts for galaxies (dotted pink line) and AGN from the COSMOS catalogue (Laigle et al. 2016; Marchesi et al. 2016b), where AGN have been selected with F_X > 1.9 × 10⁻¹⁵ erg s⁻¹ cm⁻², and separated into type 1 and 2 based on optical spectroscopic criteria (dashed yellow and red lines). The solid green and orange lines show the number density counts of type 1 and 2 AGN from our mock after applying the same cut in F_X as for the COSMOS sample. We show with vertical dashed black lines the limiting magnitude of the EWS and EDS. The lower panel show the fraction of MAMBO AGN as a function of m_H. The different lines represent different subpopulations of AGN, as in the upper panel.