condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.1100835 0.108515 0.111652 4 h after dark 0.2162985 0.0 0.432597 8 h after dark 0.10848 0.108025 0.108935 12 h after dark 0.1071505 0.0 0.214301