condition mean min max ZT0-3 452.45 452.45 452.45 ZT4-7 304.3 304.3 304.3 ZT8-11 320.15 320.15 320.15 ZT12-15 362.3 362.3 362.3 ZT16-19 484.0 484.0 484.0 ZT20-23 502.25 502.25 502.25