condition mean min max ZT0-3 361.35 361.35 361.35 ZT4-7 324.4 324.4 324.4 ZT8-11 294.4 294.4 294.4 ZT12-15 293.0 293.0 293.0 ZT16-19 320.75 320.75 320.75 ZT20-23 398.9 398.9 398.9