condition mean min max ZT0-3 0.4239233333333334 0.0 1.27177 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.15995325 0.0 0.3199065 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0