condition	mean	min	max
4 h after light	8.478565	7.48877	9.46836
8 h after light	7.600555	7.42111	7.78
12 h after light	8.352495000000001	8.01488	8.69011
4 h after dark	9.95957	9.05984	10.8593
8 h after dark	8.82265	8.78363	8.86167
12 h after dark	10.58075	10.2174	10.9441