condition mean min max ZT0-3 98.5 98.5 98.5 ZT4-7 120.4 120.4 120.4 ZT8-11 100.85 100.85 100.85 ZT12-15 123.25 123.25 123.25 ZT16-19 113.5 113.5 113.5 ZT20-23 109.35 109.35 109.35