condition	mean	min	max
4 h after light	15.6952885	14.553501	16.837076
8 h after light	15.603299	15.325404	15.881194
12 h after light	13.539281500000001	12.83397	14.244593
4 h after dark	15.8227595	15.65519	15.990329
8 h after dark	17.31942	16.028023	18.610817
12 h after dark	17.321896	17.321896	17.321896