condition mean min max ZT0-3 0.3787216666666667 0.0 1.136165 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.97265 0.97265 0.97265 ZT20-23 0.0 0.0 0.0