condition mean min max ZT0-3 100.9919 100.9919 100.9919 ZT4-7 74.4871955 74.4871955 74.4871955 ZT8-11 94.54017250000001 94.54017250000001 94.54017250000001 ZT12-15 95.819556 95.819556 95.819556 ZT16-19 104.22260650000001 104.22260650000001 104.22260650000001 ZT20-23 96.3340475 96.3340475 96.3340475