condition mean min max 2 h after light 0.03094713333333333 0.0 0.117548 6 h after light 0.01337725 0.0 0.0802635 10 h after light 0.0 0.0 0.0 14 h after light 0.009115833333333333 0.0 0.054695 18 h after light 0.02321735 0.0 0.0985419 2 h after dark 0.0409742 0.0 0.189279