condition	mean	min	max
4 h after light	9.247166	8.843717	9.650615
8 h after light	8.2818995	7.969806	8.593993
12 h after light	8.7755385	8.768853	8.782224
4 h after dark	8.4527985	8.136744	8.768853
8 h after dark	8.103475	7.438097	8.768853
12 h after dark	9.744338	9.744338	9.744338