condition mean min max ZT0-3 1771.55 1771.55 1771.55 ZT4-7 1376.9 1376.9 1376.9 ZT8-11 1364.95 1364.95 1364.95 ZT12-15 1152.6 1152.6 1152.6 ZT16-19 1519.0 1519.0 1519.0 ZT20-23 1568.0 1568.0 1568.0