condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0143955 0.0143955 0.0143955 ZT12-15 0.007801275 0.0 0.01560255 ZT16-19 0.0133974 0.0133974 0.0133974 ZT20-23 0.030797949999999998 0.030797949999999998 0.030797949999999998