condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.014814099999999998 0.014814099999999998 0.014814099999999998 ZT12-15 0.009736533333333333 0.009736533333333333 0.009736533333333333 ZT16-19 0.0208421 0.0208421 0.0208421 ZT20-23 0.0 0.0 0.0