condition mean min max ZT0-3 169.30898 169.30898 169.30898 ZT4-7 151.1239645 151.1239645 151.1239645 ZT8-11 118.10733400000001 118.10733400000001 118.10733400000001 ZT12-15 117.9596415 117.9596415 117.9596415 ZT16-19 82.6894395 82.6894395 82.6894395 ZT20-23 86.346206 86.346206 86.346206