condition	mean	min	max
4 h after light	8.795376666666666	8.663739999999999	9.023480000000001
8 h after light	8.71439	8.61763	8.85714
12 h after light	8.833543333333333	8.72708	8.97668
4 h after dark	8.999013333333334	8.95265	9.05226
8 h after dark	8.97162	8.89308	9.0484
12 h after dark	9.083883333333334	8.975660000000001	9.2736