condition mean min max ZT0-3 0.027072833333333334 0.0 0.0812185 ZT4-7 0.0 0.0 0.0 ZT8-11 0.04170525 0.04170525 0.04170525 ZT12-15 0.08976555 0.0 0.1795311 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0