condition mean min max ZT0-3 10587.05 10587.05 10587.05 ZT4-7 7564.7 7564.7 7564.7 ZT8-11 7198.1 7198.1 7198.1 ZT12-15 7922.0 7922.0 7922.0 ZT16-19 8515.35 8515.35 8515.35 ZT20-23 9952.1 9952.1 9952.1