condition mean min max ZT0-3 797.55 797.55 797.55 ZT4-7 514.1 514.1 514.1 ZT8-11 540.7 540.7 540.7 ZT12-15 733.55 733.55 733.55 ZT16-19 765.95 765.95 765.95 ZT20-23 806.65 806.65 806.65