condition	mean	min	max
4 h after light	8.774441	8.175347	9.373535
8 h after light	8.175347	8.175347	8.175347
12 h after light	7.871413	6.620381	9.122445
4 h after dark	8.67935	7.495264	9.863436
8 h after dark	7.9779634999999995	7.78058	8.175347
12 h after dark	8.716958	8.716958	8.716958