condition mean min max ZT0-3 0.2998327355975 0.0 0.4584062067925 ZT4-7 0.421686 0.421686 0.421686 ZT8-11 0.0 0.0 0.0 ZT12-15 0.32065725 0.27907 0.3622445 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0