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 0.0161448 0.0 0.0484344 12 h after light 0.13958433333333334 0.0404778 0.294266 3 h after dark 0.20390823333333333 0.0339608 0.536183 6 h after dark 0.14442096666666665 0.063635 0.283981 9 h after dark 0.018169933333333332 0.0 0.0545098 12 h after dark 0.0116973 0.0 0.0350919