condition mean min max 0 h after light 8.149564999999999 8.0143 8.28483 4 h after light 7.7368 7.48136 7.99224 8 h after light 9.63607 8.99564 10.2765 4 h after dark 9.731774999999999 9.41535 10.0482 8 h after dark 7.52866 7.12224 7.93508 12 h after dark 7.96137 7.76038 8.16236