condition	mean	min	max
4 h after light	7.5693175	6.969091	8.169544
8 h after light	6.715406	6.018276	7.412536
12 h after light	7.889908500000001	7.306584	8.473233
4 h after dark	7.3421895	6.835947	7.848432
8 h after dark	8.184506	7.828143	8.540869
12 h after dark	7.671887	7.671887	7.671887