Outflow effective efficiency is plotted against the planet specific gravitational potential for the 16 planets considered in this work (see Table 1 for a list); η_eff is defined as the ratio between the ATES-estimated mass outflow rate and the energy-limited value given by Eq. (1) for η = 1. To explore the effects of varied irradiation levels on Ṁ, (81) simulations were carried out for a broader range of F_XUV for a sub-sample of eight targets. The results are represented by the colored circles, where the adopted color scheme is the same as in Figs. 1a and b.