condition mean min max 4 h after light 2.3150649999999997 2.22398 2.40615 8 h after light 3.4306349999999997 3.2847 3.57657 12 h after light 3.4807249999999996 3.4572 3.50425 4 h after dark 5.70837 4.97412 6.44262 8 h after dark 4.756945 4.64287 4.87102 12 h after dark 4.0227200000000005 3.85361 4.19183