condition	mean	min	max
0 h after light	8.178619999999999	7.68155	8.67569
4 h after light	10.0307	9.666	10.3954
8 h after light	4.30439	4.19142	4.41736
4 h after dark	4.38968	4.11768	4.66168
8 h after dark	9.40029	9.38231	9.41827
12 h after dark	8.7119	8.11746	9.30634