condition	mean	min	max
0 h after light	8.237825	8.16231	8.31334
4 h after light	17.9964	16.174	19.8188
8 h after light	13.92	12.4264	15.4136
4 h after dark	9.569115	8.69453	10.4437
8 h after dark	11.60085	10.3126	12.8891
12 h after dark	8.73935	6.9396	10.5391