condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.2829525 0.2829525 0.2829525 ZT12-15 0 0 0 ZT16-19 0.272998 0.272998 0.272998 ZT20-23 0.0 0.0 0.0