condition	mean	min	max
4 h after light	5.623855000000001	5.2606	5.98711
8 h after light	6.31725	6.25372	6.38078
12 h after light	7.4568449999999995	7.18391	7.72978
4 h after dark	7.75803	7.20444	8.31162
8 h after dark	8.70224	8.41326	8.99122
12 h after dark	7.10166	6.94518	7.25814