condition mean min max ZT0-3 0.0312661 0.0309008 0.0316314 ZT4-7 0.0 0.0 0.0 ZT8-11 0.062589 0.062589 0.062589 ZT12-15 0 0 0 ZT16-19 0.12463255 0.12463255 0.12463255 ZT20-23 0.03141555 0.03141555 0.03141555