condition	mean	min	max
4 h after light	7.9435355	7.09765	8.789421
8 h after light	7.802497	7.291606	8.313388
12 h after light	7.617770999999999	7.095683	8.139859
4 h after dark	9.114023	8.748069	9.479977
8 h after dark	8.809234	8.216119	9.402349
12 h after dark	6.99641	6.99641	6.99641