condition mean min max ZT0-3 158.39185272499998 150.6466576 166.13704785 ZT4-7 67.126125575 55.603446805000004 78.648804345 ZT8-11 18.17621310025 10.16460643 26.1878197705 ZT12-15 6.0780142935 6.0179583805 6.1380702065 ZT16-19 17.6527299885 13.214895962 22.090564014999998 ZT20-23 29.2024216675 29.144328145000003 29.26051519