condition	mean	min	max
4 h after light	17.4625	17.3576	17.5674
8 h after light	12.758700000000001	12.6991	12.8183
12 h after light	5.12895	4.98576	5.27214
4 h after dark	8.224626666666667	7.84924	8.49139
8 h after dark	17.290333333333333	15.9603	19.0749
12 h after dark	20.115833333333335	15.8782	23.1724