condition mean min max ZT0-3 275.95 275.95 275.95 ZT4-7 257.7 257.7 257.7 ZT8-11 280.6 280.6 280.6 ZT12-15 315.15 315.15 315.15 ZT16-19 300.9 300.9 300.9 ZT20-23 311.35 311.35 311.35