condition mean min max ZT0-3 0.77381725 0.6705015 0.8771329999999999 ZT4-7 0.8464065000000001 0.8464065000000001 0.8464065000000001 ZT8-11 0.7889225 0.7889225 0.7889225 ZT12-15 0 0 0 ZT16-19 1.292165 1.292165 1.292165 ZT20-23 0.974778 0.974778 0.974778