condition mean min max ZT0-3 0.054184300000000005 0.0468396 0.061529 ZT4-7 0.0 0.0 0.0 ZT8-11 0.027543300000000003 0.027543300000000003 0.027543300000000003 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0 0 0