condition mean min max ZT0-3 0.4800453833333333 0.02838865 1.301305 ZT4-7 0.44889 0.44889 0.44889 ZT8-11 0.0271305 0.0271305 0.0271305 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0