condition mean min max 3 h after light 8.674326666666666 8.12304 9.71445 6 h after light 17.673466666666666 14.3096 19.8312 9 h after light 25.6815 22.4829 29.6544 12 h after light 22.139992499999998 7.15437 27.744 3 h after dark 24.139300000000002 23.2707 24.7453 6 h after dark 18.7394 16.7055 19.8091 9 h after dark 11.78692 9.79626 14.8513 12 h after dark 4.877615 4.84958 4.90565