condition mean min max ZT0-3 0.37986210000000004 0.37986210000000004 0.37986210000000004 ZT4-7 0.22852295 0.22852295 0.22852295 ZT8-11 0.17422365 0.17422365 0.17422365 ZT12-15 0.9849605 0.9849605 0.9849605 ZT16-19 1.1172423333333334 1.1172423333333334 1.1172423333333334 ZT20-23 0.802119 0.802119 0.802119