condition mean min max ZT0-3 89.85 89.85 89.85 ZT4-7 55.9 55.9 55.9 ZT8-11 84.7 84.7 84.7 ZT12-15 95.8 95.8 95.8 ZT16-19 99.35 99.35 99.35 ZT20-23 99.7 99.7 99.7