condition mean min max ZT0-3 346.65 346.65 346.65 ZT4-7 390.8 390.8 390.8 ZT8-11 361.5 361.5 361.5 ZT12-15 343.6 343.6 343.6 ZT16-19 373.25 373.25 373.25 ZT20-23 343.3 343.3 343.3