condition mean min max 0 h after light 0.1988945 0.0 0.397789 2 h after light 0.16307 0.0 0.32614 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.18809 0.0 0.37618 12 h after dark 0.0 0.0 0.0