condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.02499705 0.0 0.0499941 8 h after light 0.0 0.0 0.0 4 h after dark 0.0218782 0.0 0.0437564 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0