condition mean min max ZT0-3 0.01158235 0.01158235 0.01158235 ZT4-7 0.0137315 0.0137315 0.0137315 ZT8-11 0.01099615 0.01099615 0.01099615 ZT12-15 0.067149 0.067149 0.067149 ZT16-19 0.1075305 0.1075305 0.1075305 ZT20-23 0.0 0.0 0.0