condition mean min max ZT0-3 333.2 333.2 333.2 ZT4-7 341.0 341.0 341.0 ZT8-11 301.9 301.9 301.9 ZT12-15 239.15 239.15 239.15 ZT16-19 345.75 345.75 345.75 ZT20-23 322.6 322.6 322.6