condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.293813 0.293813 0.293813 ZT16-19 0.042772000000000004 0.042772000000000004 0.042772000000000004 ZT20-23 7.300000000000001e-07 7.300000000000001e-07 7.300000000000001e-07