condition mean min max ZT0-3 0.032099 0.032099 0.032099 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.03300135 0.03300135 0.03300135 ZT20-23 0.0163022 0.0163022 0.0163022