condition	mean	min	max
4 h after light	9.580126499999999	9.275369	9.884884
8 h after light	8.914159000000001	8.746956	9.081362
12 h after light	8.0134795	7.776782	8.250177
4 h after dark	9.1878515	9.00682	9.368883
8 h after dark	8.503569	7.952447	9.054691
12 h after dark	8.833406	8.833406	8.833406