Fig. 2.
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Redshift distributions of sources in our sample, subdivided into SFGs, RL and RQ AGN. Most redshifts, especially at z > 1, are photometric. Their quality deteriorates for z > 1.5 and the distributions at z > 4 are unreliable. We have therefore cut them off at z = 4. See text for a comment on the origin of the dip at z ≃ 1.3.
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