condition mean min max ZT0-3 519.9949999999999 474.804 565.1859999999999 ZT4-7 510.395 510.395 510.395 ZT8-11 622.5805 622.5805 622.5805 ZT12-15 0 0 0 ZT16-19 729.184 729.184 729.184 ZT20-23 702.431 702.431 702.431