condition mean min max ZT0-3 0.6607091402499999 0.0001532805 1.321265 ZT4-7 0.3135825 0.3135825 0.3135825 ZT8-11 0.0584815 0.0584815 0.0584815 ZT12-15 0 0 0 ZT16-19 0.0565985 0.0565985 0.0565985 ZT20-23 0.5677185 0.5677185 0.5677185