condition mean min max 4 h after light 4.684826666666666 2.76543 5.76777 8 h after light 3.913267 0.992111 6.16102 12 h after light 5.58451 3.17487 8.22911 4 h after dark 8.49047 6.33577 10.4906 8 h after dark 8.46546 6.64186 10.4151 12 h after dark 7.4430266666666665 6.16876 8.29518