condition mean min max ZT0-3 25.25645 25.25645 25.25645 ZT4-7 26.988158 26.988158 26.988158 ZT8-11 26.041648 26.041648 26.041648 ZT12-15 22.8128995 22.8128995 22.8128995 ZT16-19 25.882998 25.882998 25.882998 ZT20-23 26.725331500000003 26.725331500000003 26.725331500000003