condition mean min max ZT0-3 1242.4 1242.4 1242.4 ZT4-7 739.4 739.4 739.4 ZT8-11 731.55 731.55 731.55 ZT12-15 692.45 692.45 692.45 ZT16-19 1018.45 1018.45 1018.45 ZT20-23 1220.0 1220.0 1220.0