condition mean min max ZT0-3 0.016931009666666667 0.0 0.03386201933333333 ZT4-7 0.0165899465 0.0 0.033179893 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0