condition mean min max ZT0-3 0.03025916666666667 0.0 0.09077750000000001 ZT4-7 0.0 0.0 0.0 ZT8-11 0.01517835 0.01517835 0.01517835 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0