condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.02826446666666666 0.0 0.05652893333333332 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0186404075 0.0 0.037280815 ZT20-23 0.0 0.0 0.0