condition mean min max ZT0-3 82.20229151250001 67.982399525 96.4221835 ZT4-7 113.38147724499999 107.02404227 119.73891221999999 ZT8-11 128.63680606666668 123.6565663 133.61704583333335 ZT12-15 118.66301826666667 115.1288931 122.19714343333334 ZT16-19 90.35186393666666 83.91702749333334 96.78670038 ZT20-23 66.07726543666666 54.75326472 77.40126615333334