condition mean min max ZT0-3 0.11219875 0.06791 0.1564875 ZT4-7 0.09060560000000001 0.09060560000000001 0.09060560000000001 ZT8-11 0.0230017 0.0230017 0.0230017 ZT12-15 0 0 0 ZT16-19 0.0445604 0.0445604 0.0445604 ZT20-23 0.04469675 0.04469675 0.04469675