condition mean min max ZT0-3 590.75 590.75 590.75 ZT4-7 352.7 352.7 352.7 ZT8-11 370.65 370.65 370.65 ZT12-15 436.7 436.7 436.7 ZT16-19 540.15 540.15 540.15 ZT20-23 629.0 629.0 629.0