condition mean min max ZT0-3 2122.0 2122.0 2122.0 ZT4-7 1787.9 1787.9 1787.9 ZT8-11 1752.85 1752.85 1752.85 ZT12-15 1659.35 1659.35 1659.35 ZT16-19 2126.0 2126.0 2126.0 ZT20-23 2310.45 2310.45 2310.45