condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.03610675 0.03610675 0.03610675 ZT12-15 0 0 0 ZT16-19 0.6463125000000001 0.6463125000000001 0.6463125000000001 ZT20-23 0.0362465 0.0362465 0.0362465