condition mean min max ZT0-3 352.1 352.1 352.1 ZT4-7 396.5 396.5 396.5 ZT8-11 316.85 316.85 316.85 ZT12-15 330.0 330.0 330.0 ZT16-19 425.75 425.75 425.75 ZT20-23 320.95000000000005 320.95000000000005 320.95000000000005