condition mean min max ZT0-3 93.9 93.9 93.9 ZT4-7 11.9 11.9 11.9 ZT8-11 15.0 15.0 15.0 ZT12-15 92.85 92.85 92.85 ZT16-19 143.85 143.85 143.85 ZT20-23 87.1 87.1 87.1