condition mean min max ZT0-3 0.11535436199999999 0.0 0.23070872399999998 ZT4-7 0.0 0.0 0.0 ZT8-11 0.2632190005 0.0 0.526438001 ZT12-15 0.0 0.0 0.0 ZT16-19 0.07385844150000001 0.0 0.14771688300000002 ZT20-23 0.0 0.0 0.0