condition mean min max 4 h after light 5.9675503333333335 3.64069 9.633329 8 h after light 13.87618 11.4428 15.9072 12 h after light 22.73349 21.85886 23.91339 16 h after light 10.406551 7.472853 12.80069 4 h after dark 9.400826333333333 6.722075 13.08039 8 h after dark 5.816165999999999 4.569948999999999 7.336264999999999