condition mean min max ZT0-3 532.1 532.1 532.1 ZT4-7 696.6 696.6 696.6 ZT8-11 702.15 702.15 702.15 ZT12-15 864.5 864.5 864.5 ZT16-19 691.5 691.5 691.5 ZT20-23 725.5 725.5 725.5