condition mean min max ZT0-3 0.0800305 0.0 0.160061 ZT4-7 0.0 0.0 0.0 ZT8-11 0.162642 0.162642 0.162642 ZT12-15 0 0 0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.7881205 0.7881205 0.7881205