condition mean min max ZT0-3 81.65 81.65 81.65 ZT4-7 112.6 112.6 112.6 ZT8-11 78.55 78.55 78.55 ZT12-15 130.55 130.55 130.55 ZT16-19 82.25 82.25 82.25 ZT20-23 77.9 77.9 77.9