condition mean min max ZT0-3 74.16523333333333 49.473150000000004 91.56075000000001 ZT4-7 41.71105 41.71105 41.71105 ZT8-11 45.1981 45.1981 45.1981 ZT12-15 52.51325 49.59485 55.43165 ZT16-19 67.32335 67.32335 67.32335 ZT20-23 104.33025 104.33025 104.33025