UV emissivity at rest-frame wavelength 1450 Å. We show the emissivity obtained from the integral of the double power-law fit with four free parameters (green circles) and fixed faint end slope −1.25 (blue circles) – the latter are slightly shifted in the horizontal axis for clarity. The total emissivity at 145 nm rapidly declines with redshift. This quantity is directly related to the ionizing photon emissivity (i.e., λ₀ < 91.2 nm), given that the AGN continuum is well approximated by a power-law. We compare our results with the integral of other UV LFs in the literature for z > 2 (Matsuoka et al. 2018; Akiyama et al. 2018; Schindler et al. 2019; Kulkarni et al. 2019; Niida et al. 2020; Pan et al. 2022; Liu et al. 2022).