condition mean min max 0 h after light 0.1492615 0.143761 0.154762 2 h after light 0.0 0.0 0.0 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 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0808485 0.0 0.161697 12 h after dark 0.0 0.0 0.0