condition mean min max ZT0-3 97.691018 97.691018 97.691018 ZT4-7 102.63033300000001 102.63033300000001 102.63033300000001 ZT8-11 84.122814 84.122814 84.122814 ZT12-15 91.4163275 91.4163275 91.4163275 ZT16-19 72.72914750000001 72.72914750000001 72.72914750000001 ZT20-23 79.869229 79.869229 79.869229