condition mean min max ZT0-3 0.028097533333333334 0.0 0.05014355 ZT4-7 0.0310944 0.0310944 0.0310944 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0079649 0.0 0.0159298 ZT16-19 0.0304885 0.0304885 0.0304885 ZT20-23 0.03504355 0.03504355 0.03504355