condition	mean	min	max
4 h after light	12.9063155	10.980891	14.83174
8 h after light	15.074265	14.244095	15.904435
12 h after light	16.401799	15.247416	17.556182
4 h after dark	14.2505785	14.217839	14.283318
8 h after dark	12.823273	12.783734	12.862812
12 h after dark	12.454899	12.454899	12.454899