condition mean min max ZT0-3 10681.1 10681.1 10681.1 ZT4-7 11165.9 11165.9 11165.9 ZT8-11 10770.3 10770.3 10770.3 ZT12-15 9439.0 9439.0 9439.0 ZT16-19 9843.4 9843.4 9843.4 ZT20-23 9551.5 9551.5 9551.5