condition mean min max ZT0-3 0.03363683333333333 0.0 0.05227 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0487655 0.0 0.097531 ZT16-19 0.096864 0.096864 0.096864 ZT20-23 0.0 0.0 0.0