condition mean min max ZT0-3 107.75 107.75 107.75 ZT4-7 139.8 139.8 139.8 ZT8-11 100.0 100.0 100.0 ZT12-15 64.65 64.65 64.65 ZT16-19 85.0 85.0 85.0 ZT20-23 78.2 78.2 78.2