condition mean min max ZT0-3 104.9045 104.9045 104.9045 ZT4-7 75.23685 75.23685 75.23685 ZT8-11 90.7924 90.7924 90.7924 ZT12-15 99.03945 99.03945 99.03945 ZT16-19 106.3985 106.3985 106.3985 ZT20-23 116.70949999999999 116.70949999999999 116.70949999999999