condition mean min max 2 h after light 0.31368 0.0 1.88208 6 h after light 0.8098745 0.0 2.52137 10 h after light 0.497435 0.0 1.7315 14 h after light 1.0502821666666666 0.0 3.46062 18 h after light 1.0901413333333332 0.0 4.46665 2 h after dark 0.4675625 0.0 1.67809