condition mean min max ZT0-3 0.11429195 0.09069495 0.13788895 ZT4-7 0.0452632 0.0452632 0.0452632 ZT8-11 0.046732 0.046732 0.046732 ZT12-15 0 0 0 ZT16-19 0.04508795 0.04508795 0.04508795 ZT20-23 0.09080925000000001 0.09080925000000001 0.09080925000000001