condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.07952139566666666 0.0 0.15904279133333332 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