condition mean min max ZT0-3 306.1979 30.9708 581.425 ZT4-7 22.13126 22.13126 22.13126 ZT8-11 14.220799999999999 14.220799999999999 14.220799999999999 ZT12-15 82.72815 45.570100000000004 119.8862 ZT16-19 134.0728 100.71193333333333 167.43366666666665 ZT20-23 0 0 0