condition mean min max 4 h after light 0.0232052 0.0 0.0464104 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.02051875 0.0 0.0410375 8 h after dark 0.010136 0.0 0.020272 12 h after dark 0.0199577 0.0 0.0399154