condition mean min max ZT0-3 0.17000583333333333 0.0 0.5100175 ZT4-7 0.094487 0.094487 0.094487 ZT8-11 0.0331826 0.0331826 0.0331826 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0