condition mean min max ZT0-3 127.82249999999999 122.764 132.881 ZT4-7 93.81765 93.81765 93.81765 ZT8-11 72.6357 72.6357 72.6357 ZT12-15 0 0 0 ZT16-19 130.9725 130.9725 130.9725 ZT20-23 134.872 134.872 134.872