condition mean min max ZT0-3 0.0102828 0.0102828 0.0102828 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0125565 0.0125565 0.0125565 ZT20-23 0.02459245 0.02459245 0.02459245