condition mean min max ZT0-3 35.606883333333336 24.881349999999998 44.0676 ZT4-7 23.52165 23.52165 23.52165 ZT8-11 18.8487 18.8487 18.8487 ZT12-15 26.25965 24.5857 27.9336 ZT16-19 26.56805 26.56805 26.56805 ZT20-23 42.2829 42.2829 42.2829