condition	mean	min	max
4 h after light	16.353006	14.692337	18.013675
8 h after light	17.8523245	15.925235	19.779414
12 h after light	15.966349	15.966349	15.966349
4 h after dark	16.0228935	15.012793	17.032994
8 h after dark	16.14905	15.780378	16.517722
12 h after dark	15.663284	15.663284	15.663284