condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.02927350766666667 0.0 0.05854701533333334 ZT16-19 0.17181131816666664 0.017335075000000002 0.3262875613333333 ZT20-23 0.008834174 0.0 0.017668348