condition mean min max ZT0-3 41.89215367916667 27.898137885 55.88616947333333 ZT4-7 73.318325485 72.48046170333333 74.15618926666667 ZT8-11 81.341815865 77.78304139000001 84.90059034 ZT12-15 95.21771046 88.72372854 101.71169238 ZT16-19 80.02723309333334 77.60875311333334 82.44571307333334 ZT20-23 67.73378234666666 65.12800368666666 70.33956100666667