condition mean min max ZT0-3 34.45 34.45 34.45 ZT4-7 79.1 79.1 79.1 ZT8-11 104.15 104.15 104.15 ZT12-15 75.35 75.35 75.35 ZT16-19 47.7 47.7 47.7 ZT20-23 49.95 49.95 49.95