condition	mean	min	max
4 h after light	9.09032	8.530025	9.650615
8 h after light	7.219117499999999	6.951136	7.487099
12 h after light	7.846767	7.502826	8.190708
4 h after dark	8.4104685	7.47796	9.342977
8 h after dark	8.5101585	8.366264	8.654053
12 h after dark	9.148806	9.148806	9.148806