condition mean min max ZT0-3 105.693597 105.693597 105.693597 ZT4-7 101.93614 101.93614 101.93614 ZT8-11 111.894211 111.894211 111.894211 ZT12-15 95.41164649999999 95.41164649999999 95.41164649999999 ZT16-19 162.653557 162.653557 162.653557 ZT20-23 190.338156 190.338156 190.338156