condition mean min max ZT0-3 3075.05 3075.05 3075.05 ZT4-7 2896.8 2896.8 2896.8 ZT8-11 2617.3 2617.3 2617.3 ZT12-15 2454.0 2454.0 2454.0 ZT16-19 2168.0 2168.0 2168.0 ZT20-23 2225.8 2225.8 2225.8