condition mean min max ZT0-3 435.45 435.45 435.45 ZT4-7 312.7 312.7 312.7 ZT8-11 269.9 269.9 269.9 ZT12-15 280.05 280.05 280.05 ZT16-19 385.2 385.2 385.2 ZT20-23 362.85 362.85 362.85