condition	mean	min	max
4 h after light	7.099003333333333	6.95707	7.372089999999999
8 h after light	8.338560000000001	7.944030000000001	8.69888
12 h after light	7.49806	7.0799199999999995	7.94658
4 h after dark	8.163969999999999	7.847169999999999	8.52181
8 h after dark	8.323896666666666	7.98608	8.72339
12 h after dark	8.258696666666665	8.074689999999999	8.35108