condition mean min max ZT0-3 19.02965 19.02965 19.02965 ZT4-7 206.9125 206.9125 206.9125 ZT8-11 101.906 101.906 101.906 ZT12-15 20.08335 20.08335 20.08335 ZT16-19 0.9419735 0.9419735 0.9419735 ZT20-23 0.8575845 0.8575845 0.8575845