condition	mean	min	max
4 h after light	8.557056	7.946745	9.167367
8 h after light	7.6303835	7.344421	7.916346
12 h after light	8.257889	8.250177	8.265601
4 h after dark	8.133417000000001	8.016657	8.250177
8 h after dark	7.2052185	6.972288	7.438149
12 h after dark	7.671887	7.671887	7.671887