condition	mean	min	max
4 h after light	7.833590000000001	7.00682	8.66036
8 h after light	3.966135	3.61435	4.31792
12 h after light	5.36889	5.1417	5.59608
4 h after dark	7.47086	5.37736	9.56436
8 h after dark	8.39795	7.44095	9.35495
12 h after dark	9.544305	7.94571	11.1429