condition mean min max ZT0-3 0.06273875000000001 0.0626405 0.062837 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.061604 0.061604 0.061604 ZT20-23 0.0617765 0.0617765 0.0617765