condition	mean	min	max
4 h after light	8.411509500000001	8.045722	8.777297
8 h after light	7.16858	6.925981	7.411179
12 h after light	8.191261	8.045722	8.3368
4 h after dark	8.5067035	7.739455	9.273952
8 h after dark	8.1669445	7.295352	9.038537
12 h after dark	8.823362	8.823362	8.823362