condition mean min max ZT0-3 0.02224655 0.0 0.04446675 ZT4-7 0.0 0.0 0.0 ZT8-11 0.02287405 0.02287405 0.02287405 ZT12-15 0.01268955 0.0 0.0253791 ZT16-19 0.04354655 0.04354655 0.04354655 ZT20-23 0.0 0.0 0.0