condition mean min max 2 h after light 15.847733333333334 11.6063 20.6384 6 h after light 9.787693333333333 5.86931 13.6245 10 h after light 12.92652 8.3713 19.3086 14 h after light 13.243495 7.03459 17.8528 18 h after light 13.5434 10.034 17.5343 2 h after dark 15.725674999999999 9.68475 22.0467