condition mean min max 0 h after light 13.6649 13.3297 14.0001 4 h after light 6.859360000000001 5.76091 7.95781 8 h after light 5.737445 5.06451 6.41038 4 h after dark 2.704685 2.44317 2.9662 8 h after dark 7.4386849999999995 7.29304 7.58433 12 h after dark 9.344135000000001 9.15554 9.53273