condition	mean	min	max
4 h after light	6.524265	6.12617	6.92236
8 h after light	5.324294999999999	4.96427	5.68432
12 h after light	5.430400000000001	4.90589	5.95491
4 h after dark	8.087175	8.04335	8.131
8 h after dark	7.0337250000000004	6.99253	7.07492
12 h after dark	6.97403	6.92295	7.02511