condition mean min max ZT0-3 0.05276295675 0.0 0.1055259135 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.032905522 0.0 0.065811044