condition	mean	min	max
4 h after light	8.840363333333332	8.572239999999999	9.1511
8 h after light	8.87774	8.535789999999999	9.26246
12 h after light	8.839006666666666	8.72049	8.91888
4 h after dark	8.384563333333332	8.17939	8.65472
8 h after dark	8.175193333333333	7.850160000000001	8.414069999999999
12 h after dark	8.18987	7.941160000000001	8.45164