condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.5233623178333333 0.2322592503333333 0.8144653853333333 ZT8-11 0.035413883 0.0 0.070827766 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0