condition mean min max ZT0-3 0.017018166666666668 0.0 0.0510545 ZT4-7 0.04874855 0.04874855 0.04874855 ZT8-11 0.0513595 0.0513595 0.0513595 ZT12-15 0.02559975 0.0 0.0511995 ZT16-19 0.04960655 0.04960655 0.04960655 ZT20-23 0.0559365 0.0559365 0.0559365