condition mean min max ZT0-3 352.0 352.0 352.0 ZT4-7 423.5 423.5 423.5 ZT8-11 402.45 402.45 402.45 ZT12-15 449.1 449.1 449.1 ZT16-19 292.45000000000005 292.45000000000005 292.45000000000005 ZT20-23 360.7 360.7 360.7