condition	mean	min	max
4 h after light	7.807187	7.296369	8.318005
8 h after light	8.493966499999999	8.175347	8.812586
12 h after light	8.05306	7.273956	8.832164
4 h after dark	8.9265515	8.225858	9.627245
8 h after dark	8.5649735	8.318005	8.811942
12 h after dark	6.898258	6.898258	6.898258