condition mean min max ZT0-3 1228.95 1228.95 1228.95 ZT4-7 1073.7 1073.7 1073.7 ZT8-11 1131.05 1131.05 1131.05 ZT12-15 1164.95 1164.95 1164.95 ZT16-19 1384.0 1384.0 1384.0 ZT20-23 1230.75 1230.75 1230.75