condition mean min max ZT0-3 0.27846516666666665 0.0 0.5569303333333333 ZT4-7 0.211255 0.211255 0.211255 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