condition mean min max ZT0-3 405.45 405.45 405.45 ZT4-7 425.2 425.2 425.2 ZT8-11 389.25 389.25 389.25 ZT12-15 351.75 351.75 351.75 ZT16-19 336.05 336.05 336.05 ZT20-23 434.5 434.5 434.5