condition mean min max ZT0-3 165.65 165.65 165.65 ZT4-7 130.2 130.2 130.2 ZT8-11 149.25 149.25 149.25 ZT12-15 147.4 147.4 147.4 ZT16-19 143.75 143.75 143.75 ZT20-23 166.8 166.8 166.8