condition mean min max ZT0-3 0.0034424 0.0034424 0.0034424 ZT4-7 0.00554615 0.00554615 0.00554615 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0312595 0.0312595 0.0312595 ZT20-23 0.0 0.0 0.0