condition mean min max 0 h after light 1.656615 1.09932 2.21391 4 h after light 1.37598 1.30681 1.44515 8 h after light 2.5755850000000002 2.43216 2.71901 4 h after dark 2.442975 1.79945 3.0865 8 h after dark 2.263965 2.00166 2.52627 12 h after dark 1.0023675 0.357975 1.64676