condition mean min max ZT0-3 8635.35 8635.35 8635.35 ZT4-7 9493.6 9493.6 9493.6 ZT8-11 9519.95 9519.95 9519.95 ZT12-15 9302.85 9302.85 9302.85 ZT16-19 9167.9 9167.9 9167.9 ZT20-23 8787.599999999999 8787.599999999999 8787.599999999999