condition mean min max 4 h after light 0.0437067 0.0 0.0874134 8 h after light 0.04773125 0.0 0.0954625 12 h after light 0.0463976 0.0 0.0927952 4 h after dark 0.15821813333333332 0.0982584 0.252615 8 h after dark 0.10199166666666666 0.0 0.305975 12 h after dark 0.0 0.0 0.0