condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.10858095000000001 0.10858095000000001 0.10858095000000001 ZT8-11 0.214882 0.214882 0.214882 ZT12-15 0 0 0 ZT16-19 0.0264826 0.0264826 0.0264826 ZT20-23 0.0798027 0.0798027 0.0798027