condition mean min max ZT0-3 211.65 211.65 211.65 ZT4-7 529.7 529.7 529.7 ZT8-11 539.7 539.7 539.7 ZT12-15 672.7 672.7 672.7 ZT16-19 495.9 495.9 495.9 ZT20-23 255.6 255.6 255.6