condition mean min max ZT0-3 530.25 530.25 530.25 ZT4-7 481.4 481.4 481.4 ZT8-11 532.3499999999999 532.3499999999999 532.3499999999999 ZT12-15 564.25 564.25 564.25 ZT16-19 567.95 567.95 567.95 ZT20-23 620.45 620.45 620.45