condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.02263685 0.02263685 0.02263685 ZT16-19 0.0151319 0.0151319 0.0151319 ZT20-23 0.0 0.0 0.0