condition mean min max ZT0-3 0.06401125 0.0 0.1280225 ZT4-7 0.0 0.0 0.0 ZT8-11 0.130319 0.130319 0.130319 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.5054065 0.5054065 0.5054065