condition mean min max 4 h after light 0.3979725 0.0 0.795945 8 h after light 0.4318375 0.0 0.863675 12 h after light 0.0 0.0 0.0 4 h after dark 0.3491735 0.0 0.698347 8 h after dark 0.3419365 0.0 0.683873 12 h after dark 0.6255725 0.571893 0.679252