condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0219462 0.0 0.0658386 9 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 3 h after dark 0.05098253333333334 0.0 0.084188 6 h after dark 0.0239571 0.0 0.0718713 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0