condition mean min max ZT0-3 0.07143533333333334 0.0 0.214306 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.2149155 0.0 0.429831 ZT16-19 0.2082285 0.2082285 0.2082285 ZT20-23 0.0 0.0 0.0