condition mean min max ZT0-3 133.85 133.85 133.85 ZT4-7 105.5 105.5 105.5 ZT8-11 128.5 128.5 128.5 ZT12-15 90.85 90.85 90.85 ZT16-19 93.9 93.9 93.9 ZT20-23 84.35 84.35 84.35