condition mean min max ZT0-3 0.71755225 0.6495245 0.7855800000000001 ZT4-7 0.7889085 0.7889085 0.7889085 ZT8-11 1.30429 1.30429 1.30429 ZT12-15 0 0 0 ZT16-19 0.567481 0.567481 0.567481 ZT20-23 1.139485 1.139485 1.139485