condition mean min max ZT0-3 0.265555 0.265555 0.265555 ZT4-7 0.172655 0.172655 0.172655 ZT8-11 0.12294350000000001 0.12294350000000001 0.12294350000000001 ZT12-15 0.24714 0.24714 0.24714 ZT16-19 0.9710315 0.9710315 0.9710315 ZT20-23 0.527898 0.527898 0.527898