condition mean min max ZT0-3 97.79004531000001 82.10947361000001 113.47061701 ZT4-7 131.83807523333334 129.21739966666667 134.45875080000002 ZT8-11 128.80773079 119.44732008000001 138.1681415 ZT12-15 178.15326603333332 164.27832379999998 192.02820826666667 ZT16-19 179.26603096666668 174.8538445 183.67821743333332 ZT20-23 158.02454285 147.9342543 168.1148314