condition mean min max ZT0-3 0.022564333333333336 0.0 0.067693 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0348455 0.0 0.069691 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0