condition mean min max ZT0-3 7279.85 7279.85 7279.85 ZT4-7 6846.6 6846.6 6846.6 ZT8-11 6295.4 6295.4 6295.4 ZT12-15 6810.2 6810.2 6810.2 ZT16-19 7352.85 7352.85 7352.85 ZT20-23 7692.55 7692.55 7692.55