condition mean min max ZT0-3 1493.6 1493.6 1493.6 ZT4-7 1690.4 1690.4 1690.4 ZT8-11 1528.85 1528.85 1528.85 ZT12-15 1246.35 1246.35 1246.35 ZT16-19 1494.55 1494.55 1494.55 ZT20-23 1664.8 1664.8 1664.8