condition mean min max ZT0-3 106.6 106.6 106.6 ZT4-7 90.5 90.5 90.5 ZT8-11 126.5 126.5 126.5 ZT12-15 110.4 110.4 110.4 ZT16-19 99.15 99.15 99.15 ZT20-23 107.15 107.15 107.15