condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0448133 0.0448133 0.0448133 ZT8-11 0.27810749999999995 0.27810749999999995 0.27810749999999995 ZT12-15 0.304751425 0.11756934999999999 0.4919335 ZT16-19 0.51944525 0.51944525 0.51944525 ZT20-23 0.0 0.0 0.0