condition mean min max ZT0-3 0.042188224999999996 0.0358033 0.048573149999999995 ZT4-7 0.01824045 0.01824045 0.01824045 ZT8-11 0.0364456 0.0364456 0.0364456 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0