condition	mean	min	max
4 h after light	9.01376	8.69195	9.19725
8 h after light	9.019506666666667	8.818480000000001	9.13996
12 h after light	9.016673333333333	8.899989999999999	9.100530000000001
4 h after dark	8.82739	8.7012	8.95089
8 h after dark	8.679686666666667	8.39985	8.943019999999999
12 h after dark	8.49788	8.168660000000001	8.7328