condition mean min max ZT0-3 0.0113834 0.0113834 0.0113834 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.01297955 0.01297955 0.01297955 ZT16-19 0.0137437 0.0137437 0.0137437 ZT20-23 0.0 0.0 0.0