condition	mean	min	max
4 h after light	7.8003515	7.753586	7.847117
8 h after light	7.847117	7.847117	7.847117
12 h after light	7.949336000000001	7.847117	8.051555
4 h after dark	8.017189	7.847117	8.187261
8 h after dark	7.663622	7.356559	7.970685
12 h after dark	7.293398	7.293398	7.293398