condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 4 h after dark 0.05448395 0.054093 0.0548749 8 h after dark 0.0 0.0 0.0 12 h after dark 0.09831285000000001 0.0898767 0.106749