condition mean min max 4 h after light 3.435125 2.88354 3.98671 8 h after light 3.22327 3.07584 3.3707 12 h after light 3.498755 3.00347 3.99404 4 h after dark 3.8276766666666666 2.91373 4.95533 8 h after dark 4.942073333333333 4.20144 6.16564 12 h after dark 3.58174 2.6731 4.19065