condition mean min max ZT0-3 73.1 73.1 73.1 ZT4-7 77.9 77.9 77.9 ZT8-11 128.15 128.15 128.15 ZT12-15 104.2 104.2 104.2 ZT16-19 73.4 73.4 73.4 ZT20-23 80.35 80.35 80.35