condition mean min max ZT0-3 0.23640170149999998 0.0 0.47280340299999996 ZT4-7 0.0 0.0 0.0 ZT8-11 0.165365688 0.066604576 0.2641268 ZT12-15 0.0426357065 0.0 0.085271413 ZT16-19 0.13646373875 0.11766918400000001 0.1552582935 ZT20-23 0.0 0.0 0.0