condition mean min max ZT0-3 0.05472333333333334 0.0 0.16417 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 0.153701 0.153701 0.153701 ZT20-23 0.0 0.0 0.0