condition mean min max ZT0-3 2333.15 2333.15 2333.15 ZT4-7 2451.9 2451.9 2451.9 ZT8-11 2107.45 2107.45 2107.45 ZT12-15 781.95 781.95 781.95 ZT16-19 231.0 231.0 231.0 ZT20-23 726.25 726.25 726.25