condition mean min max ZT0-3 6696.35 6696.35 6696.35 ZT4-7 5251.9 5251.9 5251.9 ZT8-11 6120.1 6120.1 6120.1 ZT12-15 6042.85 6042.85 6042.85 ZT16-19 7125.549999999999 7125.549999999999 7125.549999999999 ZT20-23 6761.0 6761.0 6761.0