condition	mean	min	max
4 h after light	3.046035	2.46918	3.62289
8 h after light	3.703245	3.13701	4.26948
12 h after light	3.938025	3.45831	4.41774
4 h after dark	9.285245	8.31589	10.2546
8 h after dark	6.141625	5.93193	6.35132
12 h after dark	5.03492	4.91693	5.15291