condition mean min max 0 h after light 0.1359715 0.0 0.271943 4 h after light 0.2721195 0.267643 0.276596 8 h after light 0.0 0.0 0.0 4 h after dark 0.13383 0.0 0.26766 8 h after dark 0.1336765 0.0 0.267353 12 h after dark 0.0 0.0 0.0