condition mean min max ZT0-3 692.45 692.45 692.45 ZT4-7 720.6 720.6 720.6 ZT8-11 742.0 742.0 742.0 ZT12-15 720.95 720.95 720.95 ZT16-19 780.2 780.2 780.2 ZT20-23 737.05 737.05 737.05