condition mean min max 0 h after light 5.719485000000001 5.3101 6.12887 4 h after light 6.2676549999999995 6.20605 6.32926 8 h after light 9.15433 8.27596 10.0327 4 h after dark 9.01853 7.75806 10.279 8 h after dark 7.042165000000001 6.49833 7.586 12 h after dark 6.73901 5.87251 7.60551