condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.35135 0.245129 0.457571 12 h after light 0.2223815 0.0 0.444763 4 h after dark 0.19608675 0.0991025 0.293071 8 h after dark 0.3654405 0.342687 0.388194 12 h after dark 0.266325 0.243472 0.289178