condition mean min max ZT0-3 591.25 591.25 591.25 ZT4-7 624.3 624.3 624.3 ZT8-11 757.2 757.2 757.2 ZT12-15 935.2 935.2 935.2 ZT16-19 709.9 709.9 709.9 ZT20-23 478.70000000000005 478.70000000000005 478.70000000000005