condition mean min max ZT0-3 0.42995125 0.427553 0.4323495 ZT4-7 0.7786815 0.7786815 0.7786815 ZT8-11 0.6286235 0.6286235 0.6286235 ZT12-15 0 0 0 ZT16-19 0.548172 0.548172 0.548172 ZT20-23 0.5031055 0.5031055 0.5031055