condition mean min max ZT0-3 0.45225950000000004 0.26145 0.643069 ZT4-7 0.9221265000000001 0.9221265000000001 0.9221265000000001 ZT8-11 0.7932669999999999 0.7932669999999999 0.7932669999999999 ZT12-15 0 0 0 ZT16-19 1.28464 1.28464 1.28464 ZT20-23 0.7743605 0.7743605 0.7743605