condition mean min max ZT0-3 0.028331116666666666 0.0 0.08499335 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.014019875 0.0 0.02803975 ZT16-19 0.0805117 0.0805117 0.0805117 ZT20-23 0.0 0.0 0.0