condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.05614645016666667 0.0 0.11229290033333333 ZT8-11 0.0 0.0 0.0 ZT12-15 0.05865574183333333 0.0 0.11731148366666666 ZT16-19 0.09176601549999999 0.0 0.18353203099999998 ZT20-23 0.0 0.0 0.0