condition mean min max ZT0-3 8783.599999999999 8783.599999999999 8783.599999999999 ZT4-7 8681.5 8681.5 8681.5 ZT8-11 8730.25 8730.25 8730.25 ZT12-15 10355.35 10355.35 10355.35 ZT16-19 9719.4 9719.4 9719.4 ZT20-23 9398.7 9398.7 9398.7