condition mean min max 3 h after light 21.2488 20.5194 21.6603 6 h after light 16.271733333333334 13.7271 18.5759 9 h after light 18.175 17.4366 18.5614 12 h after light 22.026275 13.1048 29.0198 3 h after dark 30.4329 27.5058 32.3609 6 h after dark 21.964233333333333 20.3233 24.4145 9 h after dark 14.435266666666667 12.8717 15.4542 12 h after dark 7.65723 7.33903 7.97543