condition mean min max ZT0-3 1198.65 1198.65 1198.65 ZT4-7 1464.3 1464.3 1464.3 ZT8-11 1409.5 1409.5 1409.5 ZT12-15 1335.15 1335.15 1335.15 ZT16-19 1355.65 1355.65 1355.65 ZT20-23 1427.0 1427.0 1427.0