condition mean min max 4 h after light 0.291815 0.193536 0.390094 8 h after light 0.2370405 0.0 0.474081 12 h after light 0.0 0.0 0.0 4 h after dark 0.168692 0.0 0.337384 8 h after dark 0.5068225 0.335167 0.678478 12 h after dark 0.153297 0.140143 0.166451