condition mean min max 0 h after light 0.6966845 0.642476 0.750893 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.105771 0.104606 0.106936