condition mean min max ZT0-3 0.01790955 0.0 0.0358191 ZT4-7 0.0353157 0.0353157 0.0353157 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.070358 0.070358 0.070358 ZT20-23 0.0 0.0 0.0