condition	mean	min	max
4 h after light	9.075	8.95523	9.13518
8 h after light	9.109263333333333	9.06519	9.16682
12 h after light	9.24495	9.19743	9.28473
4 h after dark	9.204163333333334	9.08865	9.28307
8 h after dark	9.26253	9.15878	9.32266
12 h after dark	9.327323333333334	9.29438	9.38664