Cosmic SFR density in physical volumes. The estimates based on our counts measurements are plotted in black points, with the corresponding field names indicated. The gray points mark the values reported in the literature around samples of overdense regions (Clements et al. 2014; Kato et al. 2016) that are not known to host ELANe. The cosmic mean is plotted in gray dashed based on Eq. (15) of Madau & Dickinson (2014) but converted to physical volume density, whilst the black curve shows the cosmic mean multiplied by a factor of 300.