condition mean min max ZT0-3 0.012004529833333335 0.0 0.02400905966666667 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.012654161166666665 0.0 0.02530832233333333 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0