condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.055966 0.0 0.223864 3 h after dark 0.0 0.0 0.0 6 h after dark 0.11780766666666666 0.0 0.353423 9 h after dark 0.0 0.0 0.0 12 h after dark 0.1223025 0.0 0.244605