condition mean min max 4 h after light 3.7904400000000003 3.36621 4.21467 8 h after light 14.84295 14.4869 15.199 12 h after light 77.05455 68.346 85.7631 4 h after dark 21.882633333333334 19.7259 23.4432 8 h after dark 0.8143373333333334 0.581868 0.996211 12 h after dark 1.5825500000000001 1.02624 2.07315